561496019 has 8 divisors (see below), whose sum is σ = 644374368. Its totient is φ = 479283840.

The previous prime is 561495997. The next prime is 561496027. The reversal of 561496019 is 910694165.

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

It is not a de Polignac number, because 561496019 - 2²⁸ = 293060563 is a prime.

It is a super-2 number, since 2×561496019² = 630555558705696722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561496069) 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, 164732 + ... + 168105.

It is an arithmetic number, because the mean of its divisors is an integer number (80546796).

Almost surely, 2^561496019 is an apocalyptic number.

561496019 is a deficient number, since it is larger than the sum of its proper divisors (82878349).

561496019 is a wasteful number, since it uses less digits than its factorization.

561496019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333085.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 561496019 is about 23695.9072204463. The cubic root of 561496019 is about 824.9903979293.

The spelling of 561496019 in words is "five hundred sixty-one million, four hundred ninety-six thousand, nineteen".