55476905 has 16 divisors (see below), whose sum is σ = 73018368. Its totient is φ = 40128000.

The previous prime is 55476893. The next prime is 55476937. The reversal of 55476905 is 50967455.

It is a de Polignac number, because none of the positive numbers 2^k-55476905 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7865 + ... + 13145.

It is an arithmetic number, because the mean of its divisors is an integer number (4563648).

Almost surely, 2^55476905 is an apocalyptic number.

55476905 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55476905 is a deficient number, since it is larger than the sum of its proper divisors (17541463).

55476905 is a wasteful number, since it uses less digits than its factorization.

55476905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 55476905 is about 7448.2820166801. The cubic root of 55476905 is about 381.3912643221.

The spelling of 55476905 in words is "fifty-five million, four hundred seventy-six thousand, nine hundred five".