53503656 has 16 divisors (see below), whose sum is σ = 133759200. Its totient is φ = 17834544.

The previous prime is 53503643. The next prime is 53503669. The reversal of 53503656 is 65630535.

It is an interprime number because it is at equal distance from previous prime (53503643) and next prime (53503669).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1114636 + ... + 1114683.

It is an arithmetic number, because the mean of its divisors is an integer number (8359950).

Almost surely, 2^53503656 is an apocalyptic number.

It is an amenable number.

53503656 is an abundant number, since it is smaller than the sum of its proper divisors (80255544).

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

53503656 is a wasteful number, since it uses less digits than its factorization.

53503656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229328 (or 2229324 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

The square root of 53503656 is about 7314.6193339093. The cubic root of 53503656 is about 376.8146851711.

The spelling of 53503656 in words is "fifty-three million, five hundred three thousand, six hundred fifty-six".