531349625 has 16 divisors (see below), whose sum is σ = 663895440. Its totient is φ = 424585600.

The previous prime is 531349613. The next prime is 531349633. The reversal of 531349625 is 526943135.

It can be written as a sum of positive squares in 8 ways, for example, as 415507456 + 115842169 = 20384^2 + 10763^2 .

It is not a de Polignac number, because 531349625 - 2⁶ = 531349561 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 136709 + ... + 140541.

It is an arithmetic number, because the mean of its divisors is an integer number (41493465).

Almost surely, 2^531349625 is an apocalyptic number.

It is an amenable number.

531349625 is a deficient number, since it is larger than the sum of its proper divisors (132545815).

531349625 is a wasteful number, since it uses less digits than its factorization.

531349625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957 (or 4947 counting only the distinct ones).

The product of its digits is 97200, while the sum is 38.

The square root of 531349625 is about 23051.0222116070. The cubic root of 531349625 is about 809.9535740296.

The spelling of 531349625 in words is "five hundred thirty-one million, three hundred forty-nine thousand, six hundred twenty-five".