55532332 has 12 divisors (see below), whose sum is σ = 100532880. Its totient is φ = 26808656.

The previous prime is 55532317. The next prime is 55532359. The reversal of 55532332 is 23323555.

It is a self number, because there is not a number n which added to its sum of digits gives 55532332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239248 + ... + 239479.

It is an arithmetic number, because the mean of its divisors is an integer number (8377740).

Almost surely, 2^55532332 is an apocalyptic number.

It is an amenable number.

55532332 is a deficient number, since it is larger than the sum of its proper divisors (45000548).

55532332 is a wasteful number, since it uses less digits than its factorization.

55532332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478760 (or 478758 counting only the distinct ones).

The product of its digits is 13500, while the sum is 28.

The square root of 55532332 is about 7452.0018786900. The cubic root of 55532332 is about 381.5182381045.

Subtracting from 55532332 its sum of digits (28), we obtain a square (55532304 = 7452²).

Adding to 55532332 its reverse (23323555), we get a palindrome (78855887).

The spelling of 55532332 in words is "fifty-five million, five hundred thirty-two thousand, three hundred thirty-two".