25021137112 has 16 divisors (see below), whose sum is σ = 46931211360. Its totient is φ = 12506147424.

The previous prime is 25021137109. The next prime is 25021137133. The reversal of 25021137112 is 21173112052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528528 + ... + 573919.

It is an arithmetic number, because the mean of its divisors is an integer number (2933200710).

Almost surely, 2^25021137112 is an apocalyptic number.

It is an amenable number.

25021137112 is a deficient number, since it is larger than the sum of its proper divisors (21910074248).

25021137112 is a wasteful number, since it uses less digits than its factorization.

25021137112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105290 (or 1105286 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

Adding to 25021137112 its reverse (21173112052), we get a palindrome (46194249164).

The spelling of 25021137112 in words is "twenty-five billion, twenty-one million, one hundred thirty-seven thousand, one hundred twelve".