55530404 has 24 divisors (see below), whose sum is σ = 99068928. Its totient is φ = 27228960.

The previous prime is 55530383. The next prime is 55530413. The reversal of 55530404 is 40403555.

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, 102374 + ... + 102914.

It is an arithmetic number, because the mean of its divisors is an integer number (4127872).

Almost surely, 2^55530404 is an apocalyptic number.

It is an amenable number.

55530404 is a deficient number, since it is larger than the sum of its proper divisors (43538524).

55530404 is a wasteful number, since it uses less digits than its factorization.

55530404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 55530404 is about 7451.8725163545. The cubic root of 55530404 is about 381.5138228048.

Adding to 55530404 its reverse (40403555), we get a palindrome (95933959).

The spelling of 55530404 in words is "fifty-five million, five hundred thirty thousand, four hundred four".