55530508 has 12 divisors (see below), whose sum is σ = 106012872. Its totient is φ = 25241120.

The previous prime is 55530499. The next prime is 55530511. The reversal of 55530508 is 80503555.

It is a self number, because there is not a number n which added to its sum of digits gives 55530508.

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, 630985 + ... + 631072.

It is an arithmetic number, because the mean of its divisors is an integer number (8834406).

Almost surely, 2^55530508 is an apocalyptic number.

It is an amenable number.

55530508 is a deficient number, since it is larger than the sum of its proper divisors (50482364).

55530508 is a wasteful number, since it uses less digits than its factorization.

55530508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262072 (or 1262070 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 55530508 is about 7451.8794944631. The cubic root of 55530508 is about 381.5140609771.

The spelling of 55530508 in words is "fifty-five million, five hundred thirty thousand, five hundred eight".