53307231 has 8 divisors (see below), whose sum is σ = 71199744. Its totient is φ = 35476440.

The previous prime is 53307227. The next prime is 53307239. The reversal of 53307231 is 13270335.

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

It is not a de Polignac number, because 53307231 - 2² = 53307227 is a prime.

It is a super-2 number, since 2×53307231² = 5683321753774722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53307239) 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 7 ways as a sum of consecutive naturals, for example, 13375 + ... + 16896.

It is an arithmetic number, because the mean of its divisors is an integer number (8899968).

Almost surely, 2^53307231 is an apocalyptic number.

53307231 is a deficient number, since it is larger than the sum of its proper divisors (17892513).

53307231 is a wasteful number, since it uses less digits than its factorization.

53307231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30861.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 53307231 is about 7301.1801100918. The cubic root of 53307231 is about 376.3529934413.

Adding to 53307231 its reverse (13270335), we get a palindrome (66577566).

It can be divided in two parts, 5330 and 7231, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 53307231 in words is "fifty-three million, three hundred seven thousand, two hundred thirty-one".