7255816 has 16 divisors (see below), whose sum is σ = 13688640. Its totient is φ = 3605520.

The previous prime is 7255799. The next prime is 7255817. The reversal of 7255816 is 6185527.

Its product of digits (16800) is a multiple of the sum of its prime divisors (5600).

It is not an unprimeable number, because it can be changed into a prime (7255817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380 + ... + 4051.

It is an arithmetic number, because the mean of its divisors is an integer number (855540).

Almost surely, 2^7255816 is an apocalyptic number.

It is an amenable number.

7255816 is a deficient number, since it is larger than the sum of its proper divisors (6432824).

7255816 is a wasteful number, since it uses less digits than its factorization.

7255816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5604 (or 5600 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The square root of 7255816 is about 2693.6621911442. The cubic root of 7255816 is about 193.5955722640.

The spelling of 7255816 in words is "seven million, two hundred fifty-five thousand, eight hundred sixteen".