561015325 has 12 divisors (see below), whose sum is σ = 749171668. Its totient is φ = 414288000.

The previous prime is 561015319. The next prime is 561015331. The reversal of 561015325 is 523510165.

It is an interprime number because it is at equal distance from previous prime (561015319) and next prime (561015331).

It can be written as a sum of positive squares in 6 ways, for example, as 140683321 + 420332004 = 11861^2 + 20502^2 .

It is not a de Polignac number, because 561015325 - 2⁷ = 561015197 is a prime.

It is a hoax number, since the sum of its digits (28) 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 = 561015293 and 561015302.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 862776 + ... + 863425.

Almost surely, 2^561015325 is an apocalyptic number.

It is an amenable number.

561015325 is a deficient number, since it is larger than the sum of its proper divisors (188156343).

561015325 is a wasteful number, since it uses less digits than its factorization.

561015325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726224 (or 1726219 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 561015325 is about 23685.7620734483. The cubic root of 561015325 is about 824.7549072986.

The spelling of 561015325 in words is "five hundred sixty-one million, fifteen thousand, three hundred twenty-five".