53894731 has 12 divisors (see below), whose sum is σ = 61286400. Its totient is φ = 47302640.

The previous prime is 53894677. The next prime is 53894747. The reversal of 53894731 is 13749835.

It is not a de Polignac number, because 53894731 - 2¹⁷ = 53763659 is a prime.

It is a super-2 number, since 2×53894731² = 5809284059124722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53894761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4171 + ... + 11188.

It is an arithmetic number, because the mean of its divisors is an integer number (5107200).

Almost surely, 2^53894731 is an apocalyptic number.

53894731 is a deficient number, since it is larger than the sum of its proper divisors (7391669).

53894731 is a wasteful number, since it uses less digits than its factorization.

53894731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15410 (or 15399 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 53894731 is about 7341.3030859651. The cubic root of 53894731 is about 377.7305429185.

Subtracting from 53894731 its reverse (13749835), we obtain a square (40144896 = 6336²).

The spelling of 53894731 in words is "fifty-three million, eight hundred ninety-four thousand, seven hundred thirty-one".