561423225253531 has 8 divisors (see below), whose sum is σ = 561525754505024. Its totient is φ = 561320697674880.

The previous prime is 561423225253493. The next prime is 561423225253559. The reversal of 561423225253531 is 135352522324165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561423225253531 - 2³³ = 561414635318939 is a prime.

It is a super-2 number, since 2×561423225253531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561423225254531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814799821 + ... + 815488561.

It is an arithmetic number, because the mean of its divisors is an integer number (70190719313128).

Almost surely, 2^{561423225253531} is an apocalyptic number.

561423225253531 is a deficient number, since it is larger than the sum of its proper divisors (102529251493).

561423225253531 is a wasteful number, since it uses less digits than its factorization.

561423225253531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836421.

The product of its digits is 6480000, while the sum is 49.

Adding to 561423225253531 its reverse (135352522324165), we get a palindrome (696775747577696).

The spelling of 561423225253531 in words is "five hundred sixty-one trillion, four hundred twenty-three billion, two hundred twenty-five million, two hundred fifty-three thousand, five hundred thirty-one".