55572899 has 16 divisors (see below), whose sum is σ = 60141312. Its totient is φ = 51219168.

The previous prime is 55572893. The next prime is 55572919. The reversal of 55572899 is 99827555.

It is a cyclic number.

It is not a de Polignac number, because 55572899 - 2⁴ = 55572883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55572893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81749 + ... + 82425.

It is an arithmetic number, because the mean of its divisors is an integer number (3758832).

Almost surely, 2^55572899 is an apocalyptic number.

55572899 is a deficient number, since it is larger than the sum of its proper divisors (4568413).

55572899 is a wasteful number, since it uses less digits than its factorization.

55572899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its digits is 1134000, while the sum is 50.

The square root of 55572899 is about 7454.7232678350. The cubic root of 55572899 is about 381.6111166290.

The spelling of 55572899 in words is "fifty-five million, five hundred seventy-two thousand, eight hundred ninety-nine".