756522 has 48 divisors (see below), whose sum is σ = 1828008. Its totient is φ = 224640.

The previous prime is 756467. The next prime is 756527. The reversal of 756522 is 225657.

756522 is a `hidden beast` number, since 7 + 5 + 652 + 2 = 666.

756522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 385641 + 370881 = 621^2 + 609^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (756527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12372 + ... + 12432.

2⁷⁵⁶⁵²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 756522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914004).

756522 is an abundant number, since it is smaller than the sum of its proper divisors (1071486).

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

756522 is a wasteful number, since it uses less digits than its factorization.

756522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 132 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 756522 is about 869.7827314910. The cubic root of 756522 is about 91.1186312563.

The spelling of 756522 in words is "seven hundred fifty-six thousand, five hundred twenty-two".