55102504 has 8 divisors (see below), whose sum is σ = 103317210. Its totient is φ = 27551248.

The previous prime is 55102501. The next prime is 55102511. The reversal of 55102504 is 40520155.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 372100 = 7398^2 + 610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55102501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3443899 + ... + 3443914.

Almost surely, 2^55102504 is an apocalyptic number.

It is an amenable number.

55102504 is a deficient number, since it is larger than the sum of its proper divisors (48214706).

55102504 is a wasteful number, since it uses less digits than its factorization.

55102504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6887819 (or 6887815 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 55102504 is about 7423.1060884242. The cubic root of 55102504 is about 380.5313526946.

Adding to 55102504 its reverse (40520155), we get a palindrome (95622659).

The spelling of 55102504 in words is "fifty-five million, one hundred two thousand, five hundred four".