53152309 has 16 divisors (see below), whose sum is σ = 62339200. Its totient is φ = 45299520.

The previous prime is 53152283. The next prime is 53152381. The reversal of 53152309 is 90325135.

It is not a de Polignac number, because 53152309 - 2²³ = 44763701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53152399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82342 + ... + 82984.

It is an arithmetic number, because the mean of its divisors is an integer number (3896200).

Almost surely, 2^53152309 is an apocalyptic number.

It is an amenable number.

53152309 is a deficient number, since it is larger than the sum of its proper divisors (9186891).

53152309 is an equidigital number, since it uses as much as digits as its factorization.

53152309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 53152309 is about 7290.5630098093. The cubic root of 53152309 is about 375.9880527553.

The spelling of 53152309 in words is "fifty-three million, one hundred fifty-two thousand, three hundred nine".