53291305503 has 24 divisors (see below), whose sum is σ = 77588390880. Its totient is φ = 35245670400.

The previous prime is 53291305471. The next prime is 53291305511. The reversal of 53291305503 is 30550319235.

It is a happy number.

53291305503 is a `hidden beast` number, since 5 + 32 + 91 + 30 + 5 + 503 = 666.

It is not a de Polignac number, because 53291305503 - 2⁵ = 53291305471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53291305523) 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 23 ways as a sum of consecutive naturals, for example, 1019575 + ... + 1070567.

It is an arithmetic number, because the mean of its divisors is an integer number (3232849620).

Almost surely, 2^53291305503 is an apocalyptic number.

53291305503 is a deficient number, since it is larger than the sum of its proper divisors (24297085377).

53291305503 is a wasteful number, since it uses less digits than its factorization.

53291305503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51919 (or 51916 counting only the distinct ones).

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

The spelling of 53291305503 in words is "fifty-three billion, two hundred ninety-one million, three hundred five thousand, five hundred three".