25157690624 has 144 divisors (see below), whose sum is σ = 56781829440. Its totient is φ = 11025530880.

The previous prime is 25157690603. The next prime is 25157690629. The reversal of 25157690624 is 42609675152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25157690629) 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, 8804204 + ... + 8807060.

It is an arithmetic number, because the mean of its divisors is an integer number (394318260).

Almost surely, 2^25157690624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25157690624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28390914720).

25157690624 is an abundant number, since it is smaller than the sum of its proper divisors (31624138816).

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

25157690624 is a wasteful number, since it uses less digits than its factorization.

25157690624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 25157690624 in words is "twenty-five billion, one hundred fifty-seven million, six hundred ninety thousand, six hundred twenty-four".