7255290 has 32 divisors (see below), whose sum is σ = 19900800. Its totient is φ = 1658304.

The previous prime is 7255267. The next prime is 7255301. The reversal of 7255290 is 925527.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17065 + ... + 17484.

It is an arithmetic number, because the mean of its divisors is an integer number (621900).

Almost surely, 2^7255290 is an apocalyptic number.

7255290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7255290 is an abundant number, since it is smaller than the sum of its proper divisors (12645510).

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

7255290 is a wasteful number, since it uses less digits than its factorization.

7255290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34566.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 7255290 is about 2693.5645527813. The cubic root of 7255290 is about 193.5908940063.

The spelling of 7255290 in words is "seven million, two hundred fifty-five thousand, two hundred ninety".