52311509 has 8 divisors (see below), whose sum is σ = 53136000. Its totient is φ = 51491232.

The previous prime is 52311481. The next prime is 52311527. The reversal of 52311509 is 90511325.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52311509 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 (52311559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31502 + ... + 33120.

It is an arithmetic number, because the mean of its divisors is an integer number (6642000).

Almost surely, 2^52311509 is an apocalyptic number.

It is an amenable number.

52311509 is a deficient number, since it is larger than the sum of its proper divisors (824491).

52311509 is a wasteful number, since it uses less digits than its factorization.

52311509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 52311509 is about 7232.6695624783. The cubic root of 52311509 is about 373.9949597536.

The spelling of 52311509 in words is "fifty-two million, three hundred eleven thousand, five hundred nine".