7251625 has 8 divisors (see below), whose sum is σ = 9050184. Its totient is φ = 5801200.

The previous prime is 7251617. The next prime is 7251637. The reversal of 7251625 is 5261527.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 7246864 = 69^2 + 2692^2 .

It is not a de Polignac number, because 7251625 - 2³ = 7251617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7251593 and 7251602.

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 7 ways as a sum of consecutive naturals, for example, 28882 + ... + 29131.

It is an arithmetic number, because the mean of its divisors is an integer number (1131273).

Almost surely, 2^7251625 is an apocalyptic number.

It is an amenable number.

7251625 is a deficient number, since it is larger than the sum of its proper divisors (1798559).

7251625 is an equidigital number, since it uses as much as digits as its factorization.

7251625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58028 (or 58018 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 7251625 is about 2692.8841415850. The cubic root of 7251625 is about 193.5582911225.

The spelling of 7251625 in words is "seven million, two hundred fifty-one thousand, six hundred twenty-five".