53623231 has 4 divisors (see below), whose sum is σ = 53638200. Its totient is φ = 53608264.

The previous prime is 53623217. The next prime is 53623237. The reversal of 53623231 is 13232635.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53623231 - 2⁹ = 53622719 is a prime.

It is a super-2 number, since 2×53623231² = 5750901805758722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53623196 and 53623205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53623237) 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, 1425 + ... + 10453.

It is an arithmetic number, because the mean of its divisors is an integer number (13409550).

Almost surely, 2^53623231 is an apocalyptic number.

53623231 is a deficient number, since it is larger than the sum of its proper divisors (14969).

53623231 is an equidigital number, since it uses as much as digits as its factorization.

53623231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14968.

The product of its digits is 3240, while the sum is 25.

The square root of 53623231 is about 7322.7884716138. The cubic root of 53623231 is about 377.0951899354.

Adding to 53623231 its reverse (13232635), we get a palindrome (66855866).

The spelling of 53623231 in words is "fifty-three million, six hundred twenty-three thousand, two hundred thirty-one".