53431336 has 16 divisors (see below), whose sum is σ = 114495840. Its totient is φ = 22899120.

The previous prime is 53431297. The next prime is 53431349. The reversal of 53431336 is 63313435.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477010 + ... + 477121.

It is an arithmetic number, because the mean of its divisors is an integer number (7155990).

Almost surely, 2^53431336 is an apocalyptic number.

53431336 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53431336 is an abundant number, since it is smaller than the sum of its proper divisors (61064504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53431336 is a wasteful number, since it uses less digits than its factorization.

53431336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954144 (or 954140 counting only the distinct ones).

The product of its digits is 9720, while the sum is 28.

The square root of 53431336 is about 7309.6741377438. The cubic root of 53431336 is about 376.6448305751.

Subtracting from 53431336 its product of digits (9720), we obtain a triangular number (53421616 = T₁₀₃₃₆).

The spelling of 53431336 in words is "fifty-three million, four hundred thirty-one thousand, three hundred thirty-six".