25625452400 has 120 divisors (see below), whose sum is σ = 62344667424. Its totient is φ = 10121011200.

The previous prime is 25625452397. The next prime is 25625452417. The reversal of 25625452400 is 425452652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18827720 + ... + 18829080.

Almost surely, 2^25625452400 is an apocalyptic number.

25625452400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25625452400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31172333712).

25625452400 is an abundant number, since it is smaller than the sum of its proper divisors (36719215024).

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

25625452400 is a wasteful number, since it uses less digits than its factorization.

25625452400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 25625452400 in words is "twenty-five billion, six hundred twenty-five million, four hundred fifty-two thousand, four hundred".