522172623 has 16 divisors (see below), whose sum is σ = 801504000. Its totient is φ = 296204736.

The previous prime is 522172613. The next prime is 522172633. The reversal of 522172623 is 326271225.

It is an interprime number because it is at equal distance from previous prime (522172613) and next prime (522172633).

It is not a de Polignac number, because 522172623 - 2⁵ = 522172591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522172603) 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, 87873 + ... + 93626.

It is an arithmetic number, because the mean of its divisors is an integer number (50094000).

Almost surely, 2^522172623 is an apocalyptic number.

522172623 is a deficient number, since it is larger than the sum of its proper divisors (279331377).

522172623 is a wasteful number, since it uses less digits than its factorization.

522172623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181646.

The product of its digits is 10080, while the sum is 30.

The square root of 522172623 is about 22851.0967570487. The cubic root of 522172623 is about 805.2635342048.

The spelling of 522172623 in words is "five hundred twenty-two million, one hundred seventy-two thousand, six hundred twenty-three".