55664308 has 12 divisors (see below), whose sum is σ = 111328672. Its totient is φ = 23856120.

The previous prime is 55664303. The next prime is 55664321. The reversal of 55664308 is 80346655.

55664308 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55664303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993978 + ... + 994033.

Almost surely, 2^55664308 is an apocalyptic number.

It is an amenable number.

55664308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55664308 is a wasteful number, since it uses less digits than its factorization.

55664308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988022 (or 1988020 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 55664308 is about 7460.8516940092. The cubic root of 55664308 is about 381.8202328413.

The spelling of 55664308 in words is "fifty-five million, six hundred sixty-four thousand, three hundred eight".