561323142325 has 48 divisors (see below), whose sum is σ = 785857469760. Its totient is φ = 393978816000.

The previous prime is 561323142251. The next prime is 561323142337. The reversal of 561323142325 is 523241323165.

It is not a de Polignac number, because 561323142325 - 2²³ = 561314753717 is a prime.

It is a super-2 number, since 2×561323142325² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18941770 + ... + 18971380.

It is an arithmetic number, because the mean of its divisors is an integer number (16372030620).

Almost surely, 2^561323142325 is an apocalyptic number.

561323142325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561323142325 is a deficient number, since it is larger than the sum of its proper divisors (224534327435).

561323142325 is a wasteful number, since it uses less digits than its factorization.

561323142325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32038 (or 32033 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The spelling of 561323142325 in words is "five hundred sixty-one billion, three hundred twenty-three million, one hundred forty-two thousand, three hundred twenty-five".