55056556 has 12 divisors (see below), whose sum is σ = 97510392. Its totient is φ = 27196448.

The previous prime is 55056539. The next prime is 55056569. The reversal of 55056556 is 65565055.

It is a super-2 number, since 2×55056556² = 6062448717162272, which contains 22 as substring.

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, 82585 + ... + 83248.

It is an arithmetic number, because the mean of its divisors is an integer number (8125866).

Almost surely, 2^55056556 is an apocalyptic number.

It is an amenable number.

55056556 is a deficient number, since it is larger than the sum of its proper divisors (42453836).

55056556 is a wasteful number, since it uses less digits than its factorization.

55056556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165920 (or 165918 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 55056556 is about 7420.0105121219. The cubic root of 55056556 is about 380.4255528034.

The spelling of 55056556 in words is "fifty-five million, fifty-six thousand, five hundred fifty-six".