55572937 has 4 divisors (see below), whose sum is σ = 63511936. Its totient is φ = 47633940.

The previous prime is 55572919. The next prime is 55572943. The reversal of 55572937 is 73927555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55572937 - 2⁷ = 55572809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55572893 and 55572902.

It is not an unprimeable number, because it can be changed into a prime (55572947) 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 3 ways as a sum of consecutive naturals, for example, 3969489 + ... + 3969502.

It is an arithmetic number, because the mean of its divisors is an integer number (15877984).

Almost surely, 2^55572937 is an apocalyptic number.

It is an amenable number.

55572937 is a deficient number, since it is larger than the sum of its proper divisors (7938999).

55572937 is an equidigital number, since it uses as much as digits as its factorization.

55572937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938998.

The product of its digits is 330750, while the sum is 43.

The square root of 55572937 is about 7454.7258165542. The cubic root of 55572937 is about 381.6112036092.

The spelling of 55572937 in words is "fifty-five million, five hundred seventy-two thousand, nine hundred thirty-seven".