7255980 has 72 divisors (see below), whose sum is σ = 22840272. Its totient is φ = 1933632.

The previous prime is 7255979. The next prime is 7255993. The reversal of 7255980 is 895527.

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

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, 4114 + ... + 5606.

It is an arithmetic number, because the mean of its divisors is an integer number (317226).

Almost surely, 2^7255980 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 7255980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11420136).

7255980 is an abundant number, since it is smaller than the sum of its proper divisors (15584292).

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

7255980 is a wasteful number, since it uses less digits than its factorization.

7255980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 7255980 is about 2693.6926327998. The cubic root of 7255980 is about 193.5970308381.

The spelling of 7255980 in words is "seven million, two hundred fifty-five thousand, nine hundred eighty".