25122077120 has 56 divisors (see below), whose sum is σ = 68367944544. Its totient is φ = 8613282816.

The previous prime is 25122077119. The next prime is 25122077143. The reversal of 25122077120 is 2177022152.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×25122077120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5605367 + ... + 5609846.

Almost surely, 2^25122077120 is an apocalyptic number.

25122077120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25122077120 is an abundant number, since it is smaller than the sum of its proper divisors (43245867424).

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

25122077120 is a wasteful number, since it uses less digits than its factorization.

25122077120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215237 (or 11215227 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

Adding to 25122077120 its reverse (2177022152), we get a palindrome (27299099272).

The spelling of 25122077120 in words is "twenty-five billion, one hundred twenty-two million, seventy-seven thousand, one hundred twenty".