55550004 has 12 divisors (see below), whose sum is σ = 129616704. Its totient is φ = 18516664.

The previous prime is 55549979. The next prime is 55550017. The reversal of 55550004 is 40005555.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314572 + ... + 2314595.

It is an arithmetic number, because the mean of its divisors is an integer number (10801392).

Almost surely, 2^55550004 is an apocalyptic number.

It is an amenable number.

55550004 is an abundant number, since it is smaller than the sum of its proper divisors (74066700).

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

55550004 is a wasteful number, since it uses less digits than its factorization.

55550004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629174 (or 4629172 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 55550004 is about 7453.1875060272. The cubic root of 55550004 is about 381.5587038716.

Adding to 55550004 its reverse (40005555), we get a palindrome (95555559).

The spelling of 55550004 in words is "fifty-five million, five hundred fifty thousand, four".