55571523 has 64 divisors (see below), whose sum is σ = 94617600. Its totient is φ = 28304640.

The previous prime is 55571501. The next prime is 55571543. The reversal of 55571523 is 32517555.

It is not a de Polignac number, because 55571523 - 2⁵ = 55571491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55571543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 703398 + ... + 703476.

It is an arithmetic number, because the mean of its divisors is an integer number (1478400).

Almost surely, 2^55571523 is an apocalyptic number.

55571523 is a deficient number, since it is larger than the sum of its proper divisors (39046077).

55571523 is a wasteful number, since it uses less digits than its factorization.

55571523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192.

The product of its digits is 26250, while the sum is 33.

The square root of 55571523 is about 7454.6309767822. The cubic root of 55571523 is about 381.6079670049.

The spelling of 55571523 in words is "fifty-five million, five hundred seventy-one thousand, five hundred twenty-three".