561464051 has 2 divisors, whose sum is σ = 561464052. Its totient is φ = 561464050.

The previous prime is 561464047. The next prime is 561464053. The reversal of 561464051 is 150464165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561464051 - 2² = 561464047 is a prime.

Together with 561464053, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 561463999 and 561464017.

It is not a weakly prime, because it can be changed into another prime (561464053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280732025 + 280732026.

It is an arithmetic number, because the mean of its divisors is an integer number (280732026).

Almost surely, 2^561464051 is an apocalyptic number.

561464051 is a deficient number, since it is larger than the sum of its proper divisors (1).

561464051 is an equidigital number, since it uses as much as digits as its factorization.

561464051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 561464051 is about 23695.2326639769. The cubic root of 561464051 is about 824.9747410693.

The spelling of 561464051 in words is "five hundred sixty-one million, four hundred sixty-four thousand, fifty-one".