53722736 has 20 divisors (see below), whose sum is σ = 104201664. Its totient is φ = 26832000.

The previous prime is 53722729. The next prime is 53722763. The reversal of 53722736 is 63722735.

It is a super-2 number, since 2×53722736² = 5772264726651392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53722696 and 53722705.

It is a congruent number.

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, 26561 + ... + 28511.

Almost surely, 2^53722736 is an apocalyptic number.

It is an amenable number.

53722736 is a deficient number, since it is larger than the sum of its proper divisors (50478928).

53722736 is a wasteful number, since it uses less digits than its factorization.

53722736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680 (or 3674 counting only the distinct ones).

The product of its digits is 52920, while the sum is 35.

The square root of 53722736 is about 7329.5795240928. The cubic root of 53722736 is about 377.3282958147.

Subtracting 53722736 from its reverse (63722735), we obtain a palindrome (9999999).

The spelling of 53722736 in words is "fifty-three million, seven hundred twenty-two thousand, seven hundred thirty-six".