53565503 has 16 divisors (see below), whose sum is σ = 57957600. Its totient is φ = 49351680.

The previous prime is 53565481. The next prime is 53565527. The reversal of 53565503 is 30556535.

It is a cyclic number.

It is not a de Polignac number, because 53565503 - 2⁸ = 53565247 is a prime.

It is a super-2 number, since 2×53565503² = 5738526223286018, 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 53565503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53565583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130763 + ... + 131171.

It is an arithmetic number, because the mean of its divisors is an integer number (3622350).

Almost surely, 2^53565503 is an apocalyptic number.

53565503 is a deficient number, since it is larger than the sum of its proper divisors (4392097).

53565503 is a wasteful number, since it uses less digits than its factorization.

53565503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 53565503 is about 7318.8457423285. The cubic root of 53565503 is about 376.9598209472.

The spelling of 53565503 in words is "fifty-three million, five hundred sixty-five thousand, five hundred three".