561520463 has 8 divisors (see below), whose sum is σ = 645284640. Its totient is φ = 478643040.

The previous prime is 561520451. The next prime is 561520483. The reversal of 561520463 is 364025165.

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 561520463 - 2⁸ = 561520207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561520403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220328 + ... + 222861.

It is an arithmetic number, because the mean of its divisors is an integer number (80660580).

Almost surely, 2^561520463 is an apocalyptic number.

561520463 is a deficient number, since it is larger than the sum of its proper divisors (83764177).

561520463 is a wasteful number, since it uses less digits than its factorization.

561520463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443377.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 561520463 is about 23696.4230001070. The cubic root of 561520463 is about 825.0023693841.

The spelling of 561520463 in words is "five hundred sixty-one million, five hundred twenty thousand, four hundred sixty-three".