53245531 has 6 divisors (see below), whose sum is σ = 53809620. Its totient is φ = 52687296.

The previous prime is 53245471. The next prime is 53245559. The reversal of 53245531 is 13554235.

It is not a de Polignac number, because 53245531 - 2⁷ = 53245403 is a prime.

It is a super-2 number, since 2×53245531² = 5670173142943922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53245531.

It is not an unprimeable number, because it can be changed into a prime (53245561) 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, 6580 + ... + 12238.

It is an arithmetic number, because the mean of its divisors is an integer number (8968270).

Almost surely, 2^53245531 is an apocalyptic number.

53245531 is a deficient number, since it is larger than the sum of its proper divisors (564089).

53245531 is an frugal number, since it uses more digits than its factorization.

53245531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853 (or 5756 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 53245531 is about 7296.9535424038. The cubic root of 53245531 is about 376.2077351965.

Adding to 53245531 its reverse (13554235), we get a palindrome (66799766).

The spelling of 53245531 in words is "fifty-three million, two hundred forty-five thousand, five hundred thirty-one".