55030444 has 24 divisors (see below), whose sum is σ = 114847488. Its totient is φ = 22558800.

The previous prime is 55030439. The next prime is 55030457. The reversal of 55030444 is 44403055.

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, 42082 + ... + 43369.

It is an arithmetic number, because the mean of its divisors is an integer number (4785312).

Almost surely, 2^55030444 is an apocalyptic number.

It is an amenable number.

55030444 is an abundant number, since it is smaller than the sum of its proper divisors (59817044).

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

55030444 is a wasteful number, since it uses less digits than its factorization.

55030444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85485 (or 85483 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 55030444 is about 7418.2507372021. The cubic root of 55030444 is about 380.3654010636.

Adding to 55030444 its reverse (44403055), we get a palindrome (99433499).

The spelling of 55030444 in words is "fifty-five million, thirty thousand, four hundred forty-four".