55657164 has 24 divisors (see below), whose sum is σ = 129992688. Its totient is φ = 18534400.

The previous prime is 55657153. The next prime is 55657169. The reversal of 55657164 is 46175655.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55657169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17764 + ... + 20660.

It is an arithmetic number, because the mean of its divisors is an integer number (5416362).

Almost surely, 2^55657164 is an apocalyptic number.

It is an amenable number.

55657164 is an abundant number, since it is smaller than the sum of its proper divisors (74335524).

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

55657164 is a wasteful number, since it uses less digits than its factorization.

55657164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505 (or 4503 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 55657164 is about 7460.3729129314. The cubic root of 55657164 is about 381.8038977753.

The spelling of 55657164 in words is "fifty-five million, six hundred fifty-seven thousand, one hundred sixty-four".