7215017325 has 24 divisors (see below), whose sum is σ = 11932340448. Its totient is φ = 3846876480.

The previous prime is 7215017317. The next prime is 7215017333. The reversal of 7215017325 is 5237105127.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7215017317) and next prime (7215017333).

It is not a de Polignac number, because 7215017325 - 2³ = 7215017317 is a prime.

It is a congruent number.

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, 283839 + ... + 308211.

It is an arithmetic number, because the mean of its divisors is an integer number (497180852).

Almost surely, 2^7215017325 is an apocalyptic number.

7215017325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7215017325 is a deficient number, since it is larger than the sum of its proper divisors (4717323123).

7215017325 is a wasteful number, since it uses less digits than its factorization.

7215017325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333 (or 28328 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 7215017325 is about 84941.2580846316. The cubic root of 7215017325 is about 1932.3203432030.

It can be divided in two parts, 721501 and 7325, that multiplied together give a palindrome (5284994825).

The spelling of 7215017325 in words is "seven billion, two hundred fifteen million, seventeen thousand, three hundred twenty-five".