55103504 has 10 divisors (see below), whose sum is σ = 106763070. Its totient is φ = 27551744.

The previous prime is 55103501. The next prime is 55103513. The reversal of 55103504 is 40530155.

It can be written as a sum of positive squares in only one way, i.e., 37797904 + 17305600 = 6148^2 + 4160^2 .

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 55103504.

It is not an unprimeable number, because it can be changed into a prime (55103501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721969 + ... + 1722000.

It is an arithmetic number, because the mean of its divisors is an integer number (10676307).

Almost surely, 2^55103504 is an apocalyptic number.

It is an amenable number.

55103504 is a deficient number, since it is larger than the sum of its proper divisors (51659566).

55103504 is a wasteful number, since it uses less digits than its factorization.

55103504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443977 (or 3443971 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55103504 is about 7423.1734453669. The cubic root of 55103504 is about 380.5336546411.

Adding to 55103504 its reverse (40530155), we get a palindrome (95633659).

The spelling of 55103504 in words is "fifty-five million, one hundred three thousand, five hundred four".