55800446 has 16 divisors (see below), whose sum is σ = 90314448. Its totient is φ = 25704000.

The previous prime is 55800431. The next prime is 55800487. The reversal of 55800446 is 64400855.

It is a super-2 number, since 2×55800446² = 6227379547597832, which contains 22 as substring.

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, 13841 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (5644653).

Almost surely, 2^55800446 is an apocalyptic number.

55800446 is a deficient number, since it is larger than the sum of its proper divisors (34514002).

55800446 is a wasteful number, since it uses less digits than its factorization.

55800446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 55800446 is about 7469.9696117186. The cubic root of 55800446 is about 382.1312515548.

The spelling of 55800446 in words is "fifty-five million, eight hundred thousand, four hundred forty-six".