55830906 has 24 divisors (see below), whose sum is σ = 121672980. Its totient is φ = 18501696.

The previous prime is 55830893. The next prime is 55830953. The reversal of 55830906 is 60903855.

It can be written as a sum of positive squares in 2 ways, for example, as 51969681 + 3861225 = 7209^2 + 1965^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5851 + ... + 12078.

Almost surely, 2^55830906 is an apocalyptic number.

55830906 is an abundant number, since it is smaller than the sum of its proper divisors (65842074).

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

55830906 is a wasteful number, since it uses less digits than its factorization.

55830906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18110 (or 18107 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 55830906 is about 7472.0081638071. The cubic root of 55830906 is about 382.2007707161.

The spelling of 55830906 in words is "fifty-five million, eight hundred thirty thousand, nine hundred six".