7250645 has 16 divisors (see below), whose sum is σ = 9020592. Its totient is φ = 5591040.

The previous prime is 7250629. The next prime is 7250669. The reversal of 7250645 is 5460527.

It can be written as a sum of positive squares in 8 ways, for example, as 5340721 + 1909924 = 2311^2 + 1382^2 .

It is not a de Polignac number, because 7250645 - 2⁴ = 7250629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23009 + ... + 23321.

It is an arithmetic number, because the mean of its divisors is an integer number (563787).

Almost surely, 2^7250645 is an apocalyptic number.

It is an amenable number.

7250645 is a deficient number, since it is larger than the sum of its proper divisors (1769947).

7250645 is a wasteful number, since it uses less digits than its factorization.

7250645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

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

The square root of 7250645 is about 2692.7021743966. The cubic root of 7250645 is about 193.5495714369.

The spelling of 7250645 in words is "seven million, two hundred fifty thousand, six hundred forty-five".