53572731 has 16 divisors (see below), whose sum is σ = 72950400. Its totient is φ = 34962048.

The previous prime is 53572709. The next prime is 53572733. The reversal of 53572731 is 13727535.

It is not a de Polignac number, because 53572731 - 2⁵ = 53572699 is a prime.

It is a super-2 number, since 2×53572731² = 5740075013596722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53572692 and 53572701.

It is not an unprimeable number, because it can be changed into a prime (53572733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35235 + ... + 36723.

It is an arithmetic number, because the mean of its divisors is an integer number (4559400).

Almost surely, 2^53572731 is an apocalyptic number.

53572731 is a deficient number, since it is larger than the sum of its proper divisors (19377669).

53572731 is a wasteful number, since it uses less digits than its factorization.

53572731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738.

The product of its digits is 22050, while the sum is 33.

The square root of 53572731 is about 7319.3395193829. The cubic root of 53572731 is about 376.9767755349.

The spelling of 53572731 in words is "fifty-three million, five hundred seventy-two thousand, seven hundred thirty-one".