55613908 has 24 divisors (see below), whose sum is σ = 116065152. Its totient is φ = 22797984.

The previous prime is 55613897. The next prime is 55613941. The reversal of 55613908 is 80931655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42535 + ... + 43822.

It is an arithmetic number, because the mean of its divisors is an integer number (4836048).

Almost surely, 2^55613908 is an apocalyptic number.

It is an amenable number.

55613908 is an abundant number, since it is smaller than the sum of its proper divisors (60451244).

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

55613908 is a wasteful number, since it uses less digits than its factorization.

55613908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86391 (or 86389 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55613908 is about 7457.4732986448. The cubic root of 55613908 is about 381.7049611871.

The spelling of 55613908 in words is "fifty-five million, six hundred thirteen thousand, nine hundred eight".