561348473 has 4 divisors (see below), whose sum is σ = 641541120. Its totient is φ = 481155828.

The previous prime is 561348467. The next prime is 561348481. The reversal of 561348473 is 374843165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 561348473 - 2⁴ = 561348457 is a prime.

It is a super-2 number, since 2×561348473² = 630224216278863458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561348473.

It is not an unprimeable number, because it can be changed into a prime (561348433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40096313 + ... + 40096326.

It is an arithmetic number, because the mean of its divisors is an integer number (160385280).

Almost surely, 2^561348473 is an apocalyptic number.

It is an amenable number.

561348473 is a deficient number, since it is larger than the sum of its proper divisors (80192647).

561348473 is an equidigital number, since it uses as much as digits as its factorization.

561348473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80192646.

The product of its digits is 241920, while the sum is 41.

The square root of 561348473 is about 23692.7936934419. The cubic root of 561348473 is about 824.9181298617.

The spelling of 561348473 in words is "five hundred sixty-one million, three hundred forty-eight thousand, four hundred seventy-three".