11525555213 has 8 divisors (see below), whose sum is σ = 11912600448. Its totient is φ = 11144419264.

The previous prime is 11525555207. The next prime is 11525555257. The reversal of 11525555213 is 31255552511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11525555213 is a prime.

It is a super-2 number, since 2×11525555213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11525555113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1473356 + ... + 1481157.

It is an arithmetic number, because the mean of its divisors is an integer number (1489075056).

Almost surely, 2^11525555213 is an apocalyptic number.

It is an amenable number.

11525555213 is a deficient number, since it is larger than the sum of its proper divisors (387045235).

11525555213 is an equidigital number, since it uses as much as digits as its factorization.

11525555213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954643.

The product of its digits is 37500, while the sum is 35.

The spelling of 11525555213 in words is "eleven billion, five hundred twenty-five million, five hundred fifty-five thousand, two hundred thirteen".