55609506 has 24 divisors (see below), whose sum is σ = 122531760. Its totient is φ = 18221976.

The previous prime is 55609493. The next prime is 55609513. The reversal of 55609506 is 60590655.

55609506 is a `hidden beast` number, since 5 + 560 + 95 + 0 + 6 = 666.

It is a Curzon number.

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, 25120 + ... + 27243.

It is an arithmetic number, because the mean of its divisors is an integer number (5105490).

Almost surely, 2^55609506 is an apocalyptic number.

55609506 is an abundant number, since it is smaller than the sum of its proper divisors (66922254).

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

55609506 is a wasteful number, since it uses less digits than its factorization.

55609506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52430 (or 52427 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 55609506 is about 7457.1781526258. The cubic root of 55609506 is about 381.6948899079.

The spelling of 55609506 in words is "fifty-five million, six hundred nine thousand, five hundred six".