53664903 has 32 divisors (see below), whose sum is σ = 86169600. Its totient is φ = 32876928.

The previous prime is 53664901. The next prime is 53664907. The reversal of 53664903 is 30946635.

53664903 is a `hidden beast` number, since 5 + 3 + 6 + 649 + 0 + 3 = 666.

It is not a de Polignac number, because 53664903 - 2¹ = 53664901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53664901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18378 + ... + 21096.

It is an arithmetic number, because the mean of its divisors is an integer number (2692800).

Almost surely, 2^53664903 is an apocalyptic number.

53664903 is a deficient number, since it is larger than the sum of its proper divisors (32504697).

53664903 is a wasteful number, since it uses less digits than its factorization.

53664903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 53664903 is about 7325.6332832049. The cubic root of 53664903 is about 377.1928481180.

The spelling of 53664903 in words is "fifty-three million, six hundred sixty-four thousand, nine hundred three".