53966431 has 4 divisors (see below), whose sum is σ = 54051264. Its totient is φ = 53881600.

The previous prime is 53966411. The next prime is 53966447. The reversal of 53966431 is 13466935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53966431 - 2¹⁷ = 53835359 is a prime.

It is a super-2 number, since 2×53966431² = 5824751349755522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53966411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41455 + ... + 42736.

It is an arithmetic number, because the mean of its divisors is an integer number (13512816).

Almost surely, 2^53966431 is an apocalyptic number.

53966431 is a deficient number, since it is larger than the sum of its proper divisors (84833).

53966431 is an equidigital number, since it uses as much as digits as its factorization.

53966431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84832.

The product of its digits is 58320, while the sum is 37.

The square root of 53966431 is about 7346.1847921217. The cubic root of 53966431 is about 377.8979759744.

The spelling of 53966431 in words is "fifty-three million, nine hundred sixty-six thousand, four hundred thirty-one".