53504893 has 18 divisors (see below), whose sum is σ = 61216794. Its totient is φ = 46736352.

The previous prime is 53504879. The next prime is 53504903. The reversal of 53504893 is 39840535.

It can be written as a sum of positive squares in 3 ways, for example, as 1923769 + 51581124 = 1387^2 + 7182^2 .

It is not a de Polignac number, because 53504893 - 2¹³ = 53496701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53507893) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60571 + ... + 61447.

It is an arithmetic number, because the mean of its divisors is an integer number (3400933).

Almost surely, 2^53504893 is an apocalyptic number.

It is an amenable number.

53504893 is a deficient number, since it is larger than the sum of its proper divisors (7711901).

53504893 is a wasteful number, since it uses less digits than its factorization.

53504893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 53504893 is about 7314.7038901107. The cubic root of 53504893 is about 376.8175891232.

The spelling of 53504893 in words is "fifty-three million, five hundred four thousand, eight hundred ninety-three".