53433613 has 4 divisors (see below), whose sum is σ = 53487580. Its totient is φ = 53379648.

The previous prime is 53433581. The next prime is 53433617. The reversal of 53433613 is 31633435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6140484 + 47293129 = 2478^2 + 6877^2 .

It is a cyclic number.

It is not a de Polignac number, because 53433613 - 2⁵ = 53433581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53433617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25470 + ... + 27487.

It is an arithmetic number, because the mean of its divisors is an integer number (13371895).

Almost surely, 2^53433613 is an apocalyptic number.

It is an amenable number.

53433613 is a deficient number, since it is larger than the sum of its proper divisors (53967).

53433613 is a wasteful number, since it uses less digits than its factorization.

53433613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53966.

The product of its digits is 9720, while the sum is 28.

The square root of 53433613 is about 7309.8298885815. The cubic root of 53433613 is about 376.6501807945.

The spelling of 53433613 in words is "fifty-three million, four hundred thirty-three thousand, six hundred thirteen".