55566732 has 24 divisors (see below), whose sum is σ = 139629616. Its totient is φ = 17097408.

The previous prime is 55566703. The next prime is 55566739. The reversal of 55566732 is 23766555.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (55566739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177943 + ... + 178254.

Almost surely, 2^55566732 is an apocalyptic number.

55566732 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55566732 is an abundant number, since it is smaller than the sum of its proper divisors (84062884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55566732 is a wasteful number, since it uses less digits than its factorization.

55566732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356217 (or 356215 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 55566732 is about 7454.3096259815. The cubic root of 55566732 is about 381.5970001390.

The spelling of 55566732 in words is "fifty-five million, five hundred sixty-six thousand, seven hundred thirty-two".