7257025 has 12 divisors (see below), whose sum is σ = 9170172. Its totient is φ = 5695040.

The previous prime is 7257023. The next prime is 7257037. The reversal of 7257025 is 5207527.

It can be written as a sum of positive squares in 6 ways, for example, as 861184 + 6395841 = 928^2 + 2529^2 .

It is not a de Polignac number, because 7257025 - 2¹ = 7257023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7256984 and 7257002.

It is not an unprimeable number, because it can be changed into a prime (7257023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1414 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (764181).

Almost surely, 2^7257025 is an apocalyptic number.

It is an amenable number.

7257025 is a deficient number, since it is larger than the sum of its proper divisors (1913147).

7257025 is a wasteful number, since it uses less digits than its factorization.

7257025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540 (or 5535 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 7257025 is about 2693.8865974647. The cubic root of 7257025 is about 193.6063242846.

It can be divided in two parts, 725 and 7025, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 7257025 in words is "seven million, two hundred fifty-seven thousand, twenty-five".