55707500 has 30 divisors (see below), whose sum is σ = 121826628. Its totient is φ = 22282000.

The previous prime is 55707499. The next prime is 55707511. The reversal of 55707500 is 570755.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8642 + ... + 13641.

Almost surely, 2^55707500 is an apocalyptic number.

55707500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55707500 is an abundant number, since it is smaller than the sum of its proper divisors (66119128).

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

55707500 is a wasteful number, since it uses less digits than its factorization.

55707500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307 (or 22290 counting only the distinct ones).

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 55707500 is about 7463.7457084228. The cubic root of 55707500 is about 381.9189634669.

The spelling of 55707500 in words is "fifty-five million, seven hundred seven thousand, five hundred".