55440204 has 24 divisors (see below), whose sum is σ = 129539760. Its totient is φ = 18454464.

The previous prime is 55440197. The next prime is 55440211. The reversal of 55440204 is 40204455.

It is an interprime number because it is at equal distance from previous prime (55440197) and next prime (55440211).

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, 7162 + ... + 12734.

It is an arithmetic number, because the mean of its divisors is an integer number (5397490).

Almost surely, 2^55440204 is an apocalyptic number.

It is an amenable number.

55440204 is an abundant number, since it is smaller than the sum of its proper divisors (74099556).

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

55440204 is a wasteful number, since it uses less digits than its factorization.

55440204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409 (or 6407 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 55440204 is about 7445.8178865723. The cubic root of 55440204 is about 381.3071420577.

Adding to 55440204 its reverse (40204455), we get a palindrome (95644659).

The spelling of 55440204 in words is "fifty-five million, four hundred forty thousand, two hundred four".