53021368 has 32 divisors (see below), whose sum is σ = 105850800. Its totient is φ = 24812032.

The previous prime is 53021363. The next prime is 53021393. The reversal of 53021368 is 86312035.

It is a super-2 number, since 2×53021368² = 5622530929182848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25803 + ... + 27781.

Almost surely, 2^53021368 is an apocalyptic number.

It is an amenable number.

53021368 is a deficient number, since it is larger than the sum of its proper divisors (52829432).

53021368 is a wasteful number, since it uses less digits than its factorization.

53021368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2195 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 53021368 is about 7281.5773016566. The cubic root of 53021368 is about 375.6790493402.

It can be divided in two parts, 5302 and 1368, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 53021368 in words is "fifty-three million, twenty-one thousand, three hundred sixty-eight".