7256522 has 24 divisors (see below), whose sum is σ = 13474656. Its totient is φ = 2869776.

The previous prime is 7256519. The next prime is 7256527. The reversal of 7256522 is 2256527.

It is a super-2 number, since 2×7256522² = 105314223072968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (561444).

Almost surely, 2^7256522 is an apocalyptic number.

7256522 is a deficient number, since it is larger than the sum of its proper divisors (6218134).

7256522 is a wasteful number, since it uses less digits than its factorization.

7256522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102 (or 3089 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 7256522 is about 2693.7932363119. The cubic root of 7256522 is about 193.6018510911.

The spelling of 7256522 in words is "seven million, two hundred fifty-six thousand, five hundred twenty-two".