53331539 has 6 divisors (see below), whose sum is σ = 53710020. Its totient is φ = 52955700.

The previous prime is 53331527. The next prime is 53331547. The reversal of 53331539 is 93513335.

It is a de Polignac number, because none of the positive numbers 2^k-53331539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53331569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21632 + ... + 23970.

It is an arithmetic number, because the mean of its divisors is an integer number (8951670).

Almost surely, 2^53331539 is an apocalyptic number.

53331539 is a deficient number, since it is larger than the sum of its proper divisors (378481).

53331539 is an equidigital number, since it uses as much as digits as its factorization.

53331539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641 (or 2490 counting only the distinct ones).

The product of its digits is 18225, while the sum is 32.

The square root of 53331539 is about 7302.8445827636. The cubic root of 53331539 is about 376.4101901743.

The spelling of 53331539 in words is "fifty-three million, three hundred thirty-one thousand, five hundred thirty-nine".