55572345 has 32 divisors (see below), whose sum is σ = 100166400. Its totient is φ = 29227392.

The previous prime is 55572331. The next prime is 55572353. The reversal of 55572345 is 54327555.

55572345 is a `hidden beast` number, since 55 + 572 + 34 + 5 = 666.

It is not a de Polignac number, because 55572345 - 2⁴ = 55572329 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7036 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (3130200).

Almost surely, 2^55572345 is an apocalyptic number.

It is an amenable number.

55572345 is a deficient number, since it is larger than the sum of its proper divisors (44594055).

55572345 is a wasteful number, since it uses less digits than its factorization.

55572345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726 (or 5720 counting only the distinct ones).

The product of its digits is 105000, while the sum is 36.

The square root of 55572345 is about 7454.6861100921. The cubic root of 55572345 is about 381.6098485453.

It can be divided in two parts, 555 and 72345, that added together give a square (72900 = 270²).

The spelling of 55572345 in words is "fifty-five million, five hundred seventy-two thousand, three hundred forty-five".