55900442 has 16 divisors (see below), whose sum is σ = 94227840. Its totient is φ = 24678192.

The previous prime is 55900433. The next prime is 55900457. The reversal of 55900442 is 24400955.

It is a happy 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, 46142 + ... + 47337.

It is an arithmetic number, because the mean of its divisors is an integer number (5889240).

Almost surely, 2^55900442 is an apocalyptic number.

55900442 is a deficient number, since it is larger than the sum of its proper divisors (38327398).

55900442 is a wasteful number, since it uses less digits than its factorization.

55900442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93517.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 55900442 is about 7476.6598157199. The cubic root of 55900442 is about 382.3593787272.

The spelling of 55900442 in words is "fifty-five million, nine hundred thousand, four hundred forty-two".