25135012112 has 40 divisors (see below), whose sum is σ = 55686215616. Its totient is φ = 10766318976.

The previous prime is 25135011959. The next prime is 25135012117. The reversal of 25135012112 is 21121053152.

It is not an unprimeable number, because it can be changed into a prime (25135012117) 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, 150443 + ... + 270005.

Almost surely, 2^25135012112 is an apocalyptic number.

It is an amenable number.

25135012112 is an abundant number, since it is smaller than the sum of its proper divisors (30551203504).

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

25135012112 is a wasteful number, since it uses less digits than its factorization.

25135012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121455 (or 121449 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 25135012112 its reverse (21121053152), we get a palindrome (46256065264).

The spelling of 25135012112 in words is "twenty-five billion, one hundred thirty-five million, twelve thousand, one hundred twelve".