25137652832 has 24 divisors (see below), whose sum is σ = 49516210800. Its totient is φ = 12562107264.

The previous prime is 25137652831. The next prime is 25137652843. The reversal of 25137652832 is 23825673152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25137652831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148907 + ... + 269162.

It is an arithmetic number, because the mean of its divisors is an integer number (2063175450).

Almost surely, 2^25137652832 is an apocalyptic number.

It is an amenable number.

25137652832 is a deficient number, since it is larger than the sum of its proper divisors (24378557968).

25137652832 is a wasteful number, since it uses less digits than its factorization.

25137652832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419958 (or 419950 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The spelling of 25137652832 in words is "twenty-five billion, one hundred thirty-seven million, six hundred fifty-two thousand, eight hundred thirty-two".