55239692 has 24 divisors (see below), whose sum is σ = 99315216. Its totient is φ = 26869248.

The previous prime is 55239677. The next prime is 55239697. The reversal of 55239692 is 29693255.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55239697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57488 + ... + 58440.

It is an arithmetic number, because the mean of its divisors is an integer number (4138134).

Almost surely, 2^55239692 is an apocalyptic number.

It is an amenable number.

55239692 is a deficient number, since it is larger than the sum of its proper divisors (44075524).

55239692 is a wasteful number, since it uses less digits than its factorization.

55239692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

The product of its digits is 145800, while the sum is 41.

The square root of 55239692 is about 7432.3409501987. The cubic root of 55239692 is about 380.8468923228.

The spelling of 55239692 in words is "fifty-five million, two hundred thirty-nine thousand, six hundred ninety-two".