55502564 has 24 divisors (see below), whose sum is σ = 105196728. Its totient is φ = 25470720.

The previous prime is 55502563. The next prime is 55502593. The reversal of 55502564 is 46520555.

It can be written as a sum of positive squares in 4 ways, for example, as 624100 + 54878464 = 790^2 + 7408^2 .

It is a super-2 number, since 2×55502564² = 6161069221148192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55502564.

It is not an unprimeable number, because it can be changed into a prime (55502563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6464 + ... + 12360.

It is an arithmetic number, because the mean of its divisors is an integer number (4383197).

Almost surely, 2^55502564 is an apocalyptic number.

It is an amenable number.

55502564 is a deficient number, since it is larger than the sum of its proper divisors (49694164).

55502564 is a wasteful number, since it uses less digits than its factorization.

55502564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095 (or 6093 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 55502564 is about 7450.0042953008. The cubic root of 55502564 is about 381.4500552135.

Subtracting from 55502564 its reverse (46520555), we obtain a square (8982009 = 2997²).

It can be divided in two parts, 555025 and 64, that multiplied together give a square (35521600 = 5960²).

The spelling of 55502564 in words is "fifty-five million, five hundred two thousand, five hundred sixty-four".