55642136 has 16 divisors (see below), whose sum is σ = 113813640. Its totient is φ = 25291840.

The previous prime is 55642109. The next prime is 55642159. The reversal of 55642136 is 63124655.

It is a congruent number.

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, 316061 + ... + 316236.

Almost surely, 2^55642136 is an apocalyptic number.

It is an amenable number.

55642136 is an abundant number, since it is smaller than the sum of its proper divisors (58171504).

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

55642136 is a wasteful number, since it uses less digits than its factorization.

55642136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632314 (or 632310 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 55642136 is about 7459.3656566762. The cubic root of 55642136 is about 381.7695310376.

The spelling of 55642136 in words is "fifty-five million, six hundred forty-two thousand, one hundred thirty-six".