717255252 has 72 divisors (see below), whose sum is σ = 2080915200. Its totient is φ = 204055488.

The previous prime is 717255241. The next prime is 717255281. The reversal of 717255252 is 252552717.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54274 + ... + 66182.

It is an arithmetic number, because the mean of its divisors is an integer number (28901600).

Almost surely, 2^717255252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 717255252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040457600).

717255252 is an abundant number, since it is smaller than the sum of its proper divisors (1363659948).

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

717255252 is a wasteful number, since it uses less digits than its factorization.

717255252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12165 (or 12160 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 717255252 is about 26781.6215341790. The cubic root of 717255252 is about 895.1405798547.

The spelling of 717255252 in words is "seven hundred seventeen million, two hundred fifty-five thousand, two hundred fifty-two".