55080906 has 16 divisors (see below), whose sum is σ = 114951744. Its totient is φ = 17561984.

The previous prime is 55080887. The next prime is 55080911. The reversal of 55080906 is 60908055.

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, 199431 + ... + 199706.

It is an arithmetic number, because the mean of its divisors is an integer number (7184484).

Almost surely, 2^55080906 is an apocalyptic number.

55080906 is an abundant number, since it is smaller than the sum of its proper divisors (59870838).

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

55080906 is a wasteful number, since it uses less digits than its factorization.

55080906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399165.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 55080906 is about 7421.6511639931. The cubic root of 55080906 is about 380.4816284558.

The spelling of 55080906 in words is "fifty-five million, eighty thousand, nine hundred six".