55572373 has 2 divisors, whose sum is σ = 55572374. Its totient is φ = 55572372.

The previous prime is 55572353. The next prime is 55572443. The reversal of 55572373 is 37327555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48135844 + 7436529 = 6938^2 + 2727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55572373 is a prime.

It is a super-2 number, since 2×55572373² = 6176577281702258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55572353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27786186 + 27786187.

It is an arithmetic number, because the mean of its divisors is an integer number (27786187).

Almost surely, 2^55572373 is an apocalyptic number.

It is an amenable number.

55572373 is a deficient number, since it is larger than the sum of its proper divisors (1).

55572373 is an equidigital number, since it uses as much as digits as its factorization.

55572373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110250, while the sum is 37.

The square root of 55572373 is about 7454.6879881052. The cubic root of 55572373 is about 381.6099126364.

It can be divided in two parts, 55572 and 373, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 55572373 in words is "fifty-five million, five hundred seventy-two thousand, three hundred seventy-three".