55909192 has 32 divisors (see below), whose sum is σ = 111546720. Its totient is φ = 26179840.

The previous prime is 55909171. The next prime is 55909193. The reversal of 55909192 is 29190955.

It is not an unprimeable number, because it can be changed into a prime (55909193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29967 + ... + 31777.

It is an arithmetic number, because the mean of its divisors is an integer number (3485835).

Almost surely, 2^55909192 is an apocalyptic number.

It is an amenable number.

55909192 is a deficient number, since it is larger than the sum of its proper divisors (55637528).

55909192 is a wasteful number, since it uses less digits than its factorization.

55909192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2057 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 55909192 is about 7477.2449471714. The cubic root of 55909192 is about 382.3793277049.

The spelling of 55909192 in words is "fifty-five million, nine hundred nine thousand, one hundred ninety-two".