522493158 has 64 divisors (see below), whose sum is σ = 1182449664. Its totient is φ = 152484000.

The previous prime is 522493157. The next prime is 522493159. The reversal of 522493158 is 851394225.

It is an interprime number because it is at equal distance from previous prime (522493157) and next prime (522493159).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522493157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537613 + ... + 538583.

It is an arithmetic number, because the mean of its divisors is an integer number (18475776).

Almost surely, 2^522493158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522493158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591224832).

522493158 is an abundant number, since it is smaller than the sum of its proper divisors (659956506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522493158 is a wasteful number, since it uses less digits than its factorization.

522493158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281.

The product of its digits is 86400, while the sum is 39.

The square root of 522493158 is about 22858.1092393925. The cubic root of 522493158 is about 805.4282705002.

The spelling of 522493158 in words is "five hundred twenty-two million, four hundred ninety-three thousand, one hundred fifty-eight".