561476371 has 4 divisors (see below), whose sum is σ = 579588544. Its totient is φ = 543364200.

The previous prime is 561476317. The next prime is 561476387. The reversal of 561476371 is 173674165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561476371 - 2²³ = 553087763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (591476371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9056040 + ... + 9056101.

It is an arithmetic number, because the mean of its divisors is an integer number (144897136).

Almost surely, 2^561476371 is an apocalyptic number.

561476371 is a deficient number, since it is larger than the sum of its proper divisors (18112173).

561476371 is a wasteful number, since it uses less digits than its factorization.

561476371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18112172.

The product of its digits is 105840, while the sum is 40.

The square root of 561476371 is about 23695.4926304561. The cubic root of 561476371 is about 824.9807750647.

The spelling of 561476371 in words is "five hundred sixty-one million, four hundred seventy-six thousand, three hundred seventy-one".