55660533 has 24 divisors (see below), whose sum is σ = 80723808. Its totient is φ = 34089216.

The previous prime is 55660513. The next prime is 55660537. The reversal of 55660533 is 33506655.

It is not a de Polignac number, because 55660533 - 2²² = 51466229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55660494 and 55660503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55660537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36535 + ... + 38027.

It is an arithmetic number, because the mean of its divisors is an integer number (3363492).

Almost surely, 2^55660533 is an apocalyptic number.

It is an amenable number.

55660533 is a deficient number, since it is larger than the sum of its proper divisors (25063275).

55660533 is a wasteful number, since it uses less digits than its factorization.

55660533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

The square root of 55660533 is about 7460.5987025171. The cubic root of 55660533 is about 381.8116013141.

The spelling of 55660533 in words is "fifty-five million, six hundred sixty thousand, five hundred thirty-three".