125566400 has 42 divisors (see below), whose sum is σ = 308975760. Its totient is φ = 50225920.

The previous prime is 125566387. The next prime is 125566439. The reversal of 125566400 is 4665521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37640 + ... + 40839.

Almost surely, 2^125566400 is an apocalyptic number.

125566400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125566400 is an abundant number, since it is smaller than the sum of its proper divisors (183409360).

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

125566400 is an equidigital number, since it uses as much as digits as its factorization.

125566400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78501 (or 78486 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 125566400 is about 11205.6414363480. The cubic root of 125566400 is about 500.7540622087.

The spelling of 125566400 in words is "one hundred twenty-five million, five hundred sixty-six thousand, four hundred".