531172604 has 6 divisors (see below), whose sum is σ = 929552064. Its totient is φ = 265586300.

The previous prime is 531172597. The next prime is 531172637. The reversal of 531172604 is 406271135.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 66396572 + ... + 66396579.

It is an arithmetic number, because the mean of its divisors is an integer number (154925344).

Almost surely, 2^531172604 is an apocalyptic number.

It is an amenable number.

531172604 is a deficient number, since it is larger than the sum of its proper divisors (398379460).

531172604 is a wasteful number, since it uses less digits than its factorization.

531172604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132793155 (or 132793153 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 531172604 is about 23047.1821271061. The cubic root of 531172604 is about 809.8636177434.

The spelling of 531172604 in words is "five hundred thirty-one million, one hundred seventy-two thousand, six hundred four".