531172433 has 16 divisors (see below), whose sum is σ = 590516352. Its totient is φ = 473760000.

The previous prime is 531172423. The next prime is 531172489. The reversal of 531172433 is 334271135.

It is a cyclic number.

It is not a de Polignac number, because 531172433 - 2⁸ = 531172177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 531172396 and 531172405.

It is not an unprimeable number, because it can be changed into a prime (531172403) 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, 123428 + ... + 127658.

It is an arithmetic number, because the mean of its divisors is an integer number (36907272).

Almost surely, 2^531172433 is an apocalyptic number.

It is an amenable number.

531172433 is a deficient number, since it is larger than the sum of its proper divisors (59343919).

531172433 is a wasteful number, since it uses less digits than its factorization.

531172433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456.

The product of its digits is 7560, while the sum is 29.

The square root of 531172433 is about 23047.1784173248. The cubic root of 531172433 is about 809.8635308371.

The spelling of 531172433 in words is "five hundred thirty-one million, one hundred seventy-two thousand, four hundred thirty-three".