53956503 has 16 divisors (see below), whose sum is σ = 81292800. Its totient is φ = 35360280.

The previous prime is 53956499. The next prime is 53956519. The reversal of 53956503 is 30565935.

It is not a de Polignac number, because 53956503 - 2² = 53956499 is a prime.

It is a super-2 number, since 2×53956503² = 5822608431978018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53956543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15343 + ... + 18528.

It is an arithmetic number, because the mean of its divisors is an integer number (5080800).

Almost surely, 2^53956503 is an apocalyptic number.

53956503 is a deficient number, since it is larger than the sum of its proper divisors (27336297).

53956503 is a wasteful number, since it uses less digits than its factorization.

53956503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33939 (or 33933 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 36.

The square root of 53956503 is about 7345.5090361390. The cubic root of 53956503 is about 377.8748010665.

The spelling of 53956503 in words is "fifty-three million, nine hundred fifty-six thousand, five hundred three".