25689875400 has 144 divisors (see below), whose sum is σ = 98600236800. Its totient is φ = 5871968640.

The previous prime is 25689875293. The next prime is 25689875413. The reversal of 25689875400 is 457898652.

25689875400 is a `hidden beast` number, since 2 + 5 + 6 + 8 + 98 + 7 + 540 + 0 = 666.

It is a super-3 number, since 3×25689875400³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1006840 + ... + 1032039.

Almost surely, 2^25689875400 is an apocalyptic number.

25689875400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25689875400 is an abundant number, since it is smaller than the sum of its proper divisors (72910361400).

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

25689875400 is a wasteful number, since it uses less digits than its factorization.

25689875400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038908 (or 2038896 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 25689875400 in words is "twenty-five billion, six hundred eighty-nine million, eight hundred seventy-five thousand, four hundred".