25625400 has 48 divisors (see below), whose sum is σ = 79440600. Its totient is φ = 6833280.

The previous prime is 25625389. The next prime is 25625401. The reversal of 25625400 is 452652.

It is a super-2 number, since 2×25625400² = 1313322250320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25625401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20755 + ... + 21954.

Almost surely, 2^25625400 is an apocalyptic number.

25625400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25625400 is an abundant number, since it is smaller than the sum of its proper divisors (53815200).

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

25625400 is a wasteful number, since it uses less digits than its factorization.

25625400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42728 (or 42719 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25625400 is about 5062.1536918588. The cubic root of 25625400 is about 294.8199610051.

The spelling of 25625400 in words is "twenty-five million, six hundred twenty-five thousand, four hundred".