716523522 has 144 divisors (see below), whose sum is σ = 1775007360. Its totient is φ = 191505600.

The previous prime is 716523487. The next prime is 716523523. The reversal of 716523522 is 225325617.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (716523523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9069879 + ... + 9069957.

It is an arithmetic number, because the mean of its divisors is an integer number (12326440).

Almost surely, 2^716523522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 716523522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887503680).

716523522 is an abundant number, since it is smaller than the sum of its proper divisors (1058483838).

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

716523522 is a wasteful number, since it uses less digits than its factorization.

716523522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 139 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 716523522 is about 26767.9570008621. The cubic root of 716523522 is about 894.8360745521.

The spelling of 716523522 in words is "seven hundred sixteen million, five hundred twenty-three thousand, five hundred twenty-two".