55255506 has 16 divisors (see below), whose sum is σ = 112384800. Its totient is φ = 18106208.

The previous prime is 55255489. The next prime is 55255517. The reversal of 55255506 is 60555255.

It is a Curzon 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, 77691 + ... + 78398.

It is an arithmetic number, because the mean of its divisors is an integer number (7024050).

Almost surely, 2^55255506 is an apocalyptic number.

55255506 is an abundant number, since it is smaller than the sum of its proper divisors (57129294).

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

55255506 is a wasteful number, since it uses less digits than its factorization.

55255506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156153.

The product of its (nonzero) digits is 37500, while the sum is 33.

The square root of 55255506 is about 7433.4047380726. The cubic root of 55255506 is about 380.8832317610.

The spelling of 55255506 in words is "fifty-five million, two hundred fifty-five thousand, five hundred six".