55290546 has 32 divisors (see below), whose sum is σ = 126835200. Its totient is φ = 17835120.

The previous prime is 55290497. The next prime is 55290563. The reversal of 55290546 is 64509255.

It is a self number, because there is not a number n which added to its sum of digits gives 55290546.

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, 14841 + ... + 18188.

It is an arithmetic number, because the mean of its divisors is an integer number (3963600).

Almost surely, 2^55290546 is an apocalyptic number.

55290546 is an abundant number, since it is smaller than the sum of its proper divisors (71544654).

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

55290546 is a wasteful number, since it uses less digits than its factorization.

55290546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33071 (or 33065 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 55290546 is about 7435.7612925645. The cubic root of 55290546 is about 380.9637264741.

The spelling of 55290546 in words is "fifty-five million, two hundred ninety thousand, five hundred forty-six".