55966545 has 48 divisors (see below), whose sum is σ = 102141312. Its totient is φ = 29393280.

The previous prime is 55966529. The next prime is 55966553. The reversal of 55966545 is 54566955.

55966545 is a `hidden beast` number, since 5 + 596 + 6 + 54 + 5 = 666.

It is not a de Polignac number, because 55966545 - 2⁴ = 55966529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55966545.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88380 + ... + 89010.

It is an arithmetic number, because the mean of its divisors is an integer number (2127944).

Almost surely, 2^55966545 is an apocalyptic number.

It is an amenable number.

55966545 is a deficient number, since it is larger than the sum of its proper divisors (46174767).

55966545 is an equidigital number, since it uses as much as digits as its factorization.

55966545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 712 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The square root of 55966545 is about 7481.0791333871. The cubic root of 55966545 is about 382.5100343388.

The spelling of 55966545 in words is "fifty-five million, nine hundred sixty-six thousand, five hundred forty-five".