53023690 has 8 divisors (see below), whose sum is σ = 95442660. Its totient is φ = 21209472.

The previous prime is 53023681. The next prime is 53023721. The reversal of 53023690 is 9632035.

It can be written as a sum of positive squares in 2 ways, for example, as 50027329 + 2996361 = 7073^2 + 1731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53023690² = 5623023402432200, which contains 22 as substring.

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, 2651175 + ... + 2651194.

Almost surely, 2^53023690 is an apocalyptic number.

53023690 is a deficient number, since it is larger than the sum of its proper divisors (42418970).

53023690 is a wasteful number, since it uses less digits than its factorization.

53023690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302376.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 53023690 is about 7281.7367433875. The cubic root of 53023690 is about 375.6845333808.

The spelling of 53023690 in words is "fifty-three million, twenty-three thousand, six hundred ninety".