531252693 has 6 divisors (see below), whose sum is σ = 767365014. Its totient is φ = 354168456.

The previous prime is 531252661. The next prime is 531252707. The reversal of 531252693 is 396252135.

It can be written as a sum of positive squares in only one way, i.e., 365306769 + 165945924 = 19113^2 + 12882^2 .

It is not a de Polignac number, because 531252693 - 2⁵ = 531252661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531252613) 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 5 ways as a sum of consecutive naturals, for example, 29514030 + ... + 29514047.

It is an arithmetic number, because the mean of its divisors is an integer number (127894169).

Almost surely, 2^531252693 is an apocalyptic number.

It is an amenable number.

531252693 is a deficient number, since it is larger than the sum of its proper divisors (236112321).

531252693 is a wasteful number, since it uses less digits than its factorization.

531252693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59028083 (or 59028080 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 531252693 is about 23048.9195625305. The cubic root of 531252693 is about 809.9043188307.

The spelling of 531252693 in words is "five hundred thirty-one million, two hundred fifty-two thousand, six hundred ninety-three".