125569992 has 32 divisors (see below), whose sum is σ = 317167200. Its totient is φ = 41424384.

The previous prime is 125569987. The next prime is 125569999. The reversal of 125569992 is 299965521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (125569999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24642 + ... + 29297.

It is an arithmetic number, because the mean of its divisors is an integer number (9911475).

Almost surely, 2^125569992 is an apocalyptic number.

125569992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125569992 is an abundant number, since it is smaller than the sum of its proper divisors (191597208).

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

125569992 is a wasteful number, since it uses less digits than its factorization.

125569992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54045 (or 54041 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 125569992 is about 11205.8017116135. The cubic root of 125569992 is about 500.7588370833.

The spelling of 125569992 in words is "one hundred twenty-five million, five hundred sixty-nine thousand, nine hundred ninety-two".