55603004 has 12 divisors (see below), whose sum is σ = 97362384. Its totient is φ = 27785184.

The previous prime is 55603003. The next prime is 55603007. The reversal of 55603004 is 40030655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55603001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824 + ... + 12560.

It is an arithmetic number, because the mean of its divisors is an integer number (8113532).

Almost surely, 2^55603004 is an apocalyptic number.

It is an amenable number.

55603004 is a deficient number, since it is larger than the sum of its proper divisors (41759380).

55603004 is a wasteful number, since it uses less digits than its factorization.

55603004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164 (or 8162 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 55603004 is about 7456.7421840909. The cubic root of 55603004 is about 381.6800130935.

Adding to 55603004 its reverse (40030655), we get a palindrome (95633659).

The spelling of 55603004 in words is "fifty-five million, six hundred three thousand, four".