53864433 has 20 divisors (see below), whose sum is σ = 91960000. Its totient is φ = 30779352.

The previous prime is 53864429. The next prime is 53864443. The reversal of 53864433 is 33446835.

53864433 is a `hidden beast` number, since 5 + 3 + 8 + 644 + 3 + 3 = 666.

It is not a de Polignac number, because 53864433 - 2² = 53864429 is a prime.

It is a super-2 number, since 2×53864433² = 5802754284822978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53864443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46933 + ... + 48066.

It is an arithmetic number, because the mean of its divisors is an integer number (4598000).

Almost surely, 2^53864433 is an apocalyptic number.

It is an amenable number.

53864433 is a deficient number, since it is larger than the sum of its proper divisors (38095567).

53864433 is an equidigital number, since it uses as much as digits as its factorization.

53864433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95018 (or 95009 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 53864433 is about 7339.2392657550. The cubic root of 53864433 is about 377.6597467260.

The spelling of 53864433 in words is "fifty-three million, eight hundred sixty-four thousand, four hundred thirty-three".