55476438 has 16 divisors (see below), whose sum is σ = 111222720. Its totient is φ = 18447176.

The previous prime is 55476427. The next prime is 55476451. The reversal of 55476438 is 83467455.

It is a self number, because there is not a number n which added to its sum of digits gives 55476438.

It is a congruent 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, 8520 + ... + 13547.

It is an arithmetic number, because the mean of its divisors is an integer number (6951420).

Almost surely, 2^55476438 is an apocalyptic number.

55476438 is an abundant number, since it is smaller than the sum of its proper divisors (55746282).

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

55476438 is a wasteful number, since it uses less digits than its factorization.

55476438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22491.

The product of its digits is 403200, while the sum is 42.

The square root of 55476438 is about 7448.2506671030. The cubic root of 55476438 is about 381.3901941457.

The spelling of 55476438 in words is "fifty-five million, four hundred seventy-six thousand, four hundred thirty-eight".