615325 has 12 divisors (see below), whose sum is σ = 772768. Its totient is φ = 486000.

The previous prime is 615313. The next prime is 615337. The reversal of 615325 is 523516.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (615313) and next prime (615337).

It is a de Polignac number, because none of the positive numbers 2^k-615325 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 615296 and 615305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3694 + ... + 3856.

2⁶¹⁵³²⁵ is an apocalyptic number.

It is an amenable number.

615325 is a deficient number, since it is larger than the sum of its proper divisors (157443).

615325 is a wasteful number, since it uses less digits than its factorization.

615325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 319 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 615325 is about 784.4265421313. The cubic root of 615325 is about 85.0553273009.

Adding to 615325 its product of digits (900), we get a square (616225 = 785²).

Subtracting from 615325 its reverse (523516), we obtain a square (91809 = 303²).

The spelling of 615325 in words is "six hundred fifteen thousand, three hundred twenty-five".