25251812352 has 396 divisors, whose sum is σ = 81657024384. Its totient is φ = 7504773120.

The previous prime is 25251812351. The next prime is 25251812371. The reversal of 25251812352 is 25321815252.

25251812352 is a `hidden beast` number, since 2 + 525 + 1 + 8 + 123 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25251812351) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48282363 + ... + 48282885.

Almost surely, 2^25251812352 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 25251812352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40828512192).

25251812352 is an abundant number, since it is smaller than the sum of its proper divisors (56405212032).

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

25251812352 is a wasteful number, since it uses less digits than its factorization.

25251812352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 572 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The spelling of 25251812352 in words is "twenty-five billion, two hundred fifty-one million, eight hundred twelve thousand, three hundred fifty-two".