55997670 has 32 divisors (see below), whose sum is σ = 134719200. Its totient is φ = 14896640.

The previous prime is 55997659. The next prime is 55997671. The reversal of 55997670 is 7679955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55997671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11806 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (4209975).

Almost surely, 2^55997670 is an apocalyptic number.

55997670 is an abundant number, since it is smaller than the sum of its proper divisors (78721530).

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

55997670 is a wasteful number, since it uses less digits than its factorization.

55997670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its (nonzero) digits is 595350, while the sum is 48.

The square root of 55997670 is about 7483.1590922551. The cubic root of 55997670 is about 382.5809303742.

The spelling of 55997670 in words is "fifty-five million, nine hundred ninety-seven thousand, six hundred seventy".