55532307 has 32 divisors (see below), whose sum is σ = 80819200. Its totient is φ = 33802272.

The previous prime is 55532299. The next prime is 55532311. The reversal of 55532307 is 70323555.

It is not a de Polignac number, because 55532307 - 2³ = 55532299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55532317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340608 + ... + 340770.

It is an arithmetic number, because the mean of its divisors is an integer number (2525600).

Almost surely, 2^55532307 is an apocalyptic number.

55532307 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

55532307 is a deficient number, since it is larger than the sum of its proper divisors (25286893).

55532307 is a wasteful number, since it uses less digits than its factorization.

55532307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 15750, while the sum is 30.

The square root of 55532307 is about 7452.0002012882. Note that the first 3 decimals coincide. The cubic root of 55532307 is about 381.5181808528.

The spelling of 55532307 in words is "fifty-five million, five hundred thirty-two thousand, three hundred seven".