125155616 has 24 divisors (see below), whose sum is σ = 252412524. Its totient is φ = 61050880.

The previous prime is 125155601. The next prime is 125155637. The reversal of 125155616 is 616551521.

It can be written as a sum of positive squares in 2 ways, for example, as 124992400 + 163216 = 11180^2 + 404^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46385 + ... + 49008.

Almost surely, 2^125155616 is an apocalyptic number.

125155616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125155616 is an abundant number, since it is smaller than the sum of its proper divisors (127256908).

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

125155616 is an equidigital number, since it uses as much as digits as its factorization.

125155616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95444 (or 95436 counting only the distinct ones).

The product of its digits is 9000, while the sum is 32.

The square root of 125155616 is about 11187.2970819586. The cubic root of 125155616 is about 500.2074019570.

The spelling of 125155616 in words is "one hundred twenty-five million, one hundred fifty-five thousand, six hundred sixteen".