55717570 has 16 divisors (see below), whose sum is σ = 100440000. Its totient is φ = 22254064.

The previous prime is 55717549. The next prime is 55717577. The reversal of 55717570 is 7571755.

It is not an unprimeable number, because it can be changed into a prime (55717577) 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, 3681 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (6277500).

Almost surely, 2^55717570 is an apocalyptic number.

55717570 is a deficient number, since it is larger than the sum of its proper divisors (44722430).

55717570 is a wasteful number, since it uses less digits than its factorization.

55717570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8249.

The product of its (nonzero) digits is 42875, while the sum is 37.

The square root of 55717570 is about 7464.4202721980. The cubic root of 55717570 is about 381.9419746847.

The spelling of 55717570 in words is "fifty-five million, seven hundred seventeen thousand, five hundred seventy".