55613004 has 24 divisors (see below), whose sum is σ = 130545408. Its totient is φ = 18426000.

The previous prime is 55613003. The next prime is 55613009. The reversal of 55613004 is 40031655.

It is not an unprimeable number, because it can be changed into a prime (55613003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11872 + ... + 15879.

It is an arithmetic number, because the mean of its divisors is an integer number (5439392).

Almost surely, 2^55613004 is an apocalyptic number.

It is an amenable number.

55613004 is an abundant number, since it is smaller than the sum of its proper divisors (74932404).

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

55613004 is a wasteful number, since it uses less digits than its factorization.

55613004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27925 (or 27923 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55613004 is about 7457.4126880574. The cubic root of 55613004 is about 381.7028929805.

Adding to 55613004 its reverse (40031655), we get a palindrome (95644659).

The spelling of 55613004 in words is "fifty-five million, six hundred thirteen thousand, four".