53205131 has 16 divisors (see below), whose sum is σ = 62462400. Its totient is φ = 45299520.

The previous prime is 53205109. The next prime is 53205137. The reversal of 53205131 is 13150235.

It is not a de Polignac number, because 53205131 - 2⁶ = 53205067 is a prime.

It is a super-2 number, since 2×53205131² = 5661571929454322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53205137) 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, 61655 + ... + 62511.

It is an arithmetic number, because the mean of its divisors is an integer number (3903900).

Almost surely, 2^53205131 is an apocalyptic number.

53205131 is a deficient number, since it is larger than the sum of its proper divisors (9257269).

53205131 is an equidigital number, since it uses as much as digits as its factorization.

53205131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 53205131 is about 7294.1847385434. The cubic root of 53205131 is about 376.1125620251.

Adding to 53205131 its reverse (13150235), we get a palindrome (66355366).

The spelling of 53205131 in words is "fifty-three million, two hundred five thousand, one hundred thirty-one".