25161053112 has 64 divisors (see below), whose sum is σ = 75268116000. Its totient is φ = 7741861632.

The previous prime is 25161053111. The next prime is 25161053117. The reversal of 25161053112 is 21135016152.

25161053112 is a `hidden beast` number, since 2 + 5 + 1 + 610 + 5 + 31 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25161053111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4477437 + ... + 4483052.

Almost surely, 2^25161053112 is an apocalyptic number.

It is an amenable number.

25161053112 is an abundant number, since it is smaller than the sum of its proper divisors (50107062888).

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

25161053112 is a wasteful number, since it uses less digits than its factorization.

25161053112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960517 (or 8960507 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 25161053112 its reverse (21135016152), we get a palindrome (46296069264).

The spelling of 25161053112 in words is "twenty-five billion, one hundred sixty-one million, fifty-three thousand, one hundred twelve".