55670636 has 12 divisors (see below), whose sum is σ = 111341328. Its totient is φ = 23858832.

The previous prime is 55670599. The next prime is 55670639. The reversal of 55670636 is 63607655.

55670636 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55670636.

It is not an unprimeable number, because it can be changed into a prime (55670639) 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, 994091 + ... + 994146.

It is an arithmetic number, because the mean of its divisors is an integer number (9278444).

Almost surely, 2^55670636 is an apocalyptic number.

It is an amenable number.

55670636 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.

55670636 is a wasteful number, since it uses less digits than its factorization.

55670636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988248 (or 1988246 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 55670636 is about 7461.2757622273. The cubic root of 55670636 is about 381.8347009207.

The spelling of 55670636 in words is "fifty-five million, six hundred seventy thousand, six hundred thirty-six".