7715025 has 36 divisors (see below), whose sum is σ = 14638572. Its totient is φ = 3870720.

The previous prime is 7714999. The next prime is 7715027. The reversal of 7715025 is 5205177.

7715025 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 294849 + 7420176 = 543^2 + 2724^2 .

It is not a de Polignac number, because 7715025 - 2⁷ = 7714897 is a prime.

It is a super-2 number, since 2×7715025² = 119043221501250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7715025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7715027) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 2817 + ... + 4833.

It is an arithmetic number, because the mean of its divisors is an integer number (406627).

Almost surely, 2^7715025 is an apocalyptic number.

7715025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7715025 is a deficient number, since it is larger than the sum of its proper divisors (6923547).

7715025 is a wasteful number, since it uses less digits than its factorization.

7715025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 7715025 is about 2777.5933827686. The cubic root of 7715025 is about 197.5964385077.

The spelling of 7715025 in words is "seven million, seven hundred fifteen thousand, twenty-five".