11525426501220 has 36 divisors (see below), whose sum is σ = 34960460387580. Its totient is φ = 3073447066944.

The previous prime is 11525426501213. The next prime is 11525426501227. The reversal of 11525426501220 is 2210562452511.

11525426501220 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 5 + 426 + 5 + 0 + 1 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (11525426501213) and next prime (11525426501227).

It can be written as a sum of positive squares in 2 ways, for example, as 7386512938596 + 4138913562624 = 2717814^2 + 2034432^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11525426501220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11525426501227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32015073435 + ... + 32015073794.

It is an arithmetic number, because the mean of its divisors is an integer number (971123899655).

Almost surely, 2^{11525426501220} is an apocalyptic number.

11525426501220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11525426501220 is an abundant number, since it is smaller than the sum of its proper divisors (23435033886360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11525426501220 is a wasteful number, since it uses less digits than its factorization.

11525426501220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64030147244 (or 64030147239 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 11525426501220 its reverse (2210562452511), we get a palindrome (13735988953731).

The spelling of 11525426501220 in words is "eleven trillion, five hundred twenty-five billion, four hundred twenty-six million, five hundred one thousand, two hundred twenty".