561952049 has 4 divisors (see below), whose sum is σ = 571476720. Its totient is φ = 552427380.

The previous prime is 561952003. The next prime is 561952067. The reversal of 561952049 is 940259165.

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 a de Polignac number, because none of the positive numbers 2^k-561952049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561951997 and 561952015.

It is not an unprimeable number, because it can be changed into a prime (561952099) 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, 4762247 + ... + 4762364.

It is an arithmetic number, because the mean of its divisors is an integer number (142869180).

Almost surely, 2^561952049 is an apocalyptic number.

561952049 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

561952049 is a deficient number, since it is larger than the sum of its proper divisors (9524671).

561952049 is an equidigital number, since it uses as much as digits as its factorization.

561952049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524670.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 561952049 is about 23705.5278152586. The cubic root of 561952049 is about 825.2136815340.

The spelling of 561952049 in words is "five hundred sixty-one million, nine hundred fifty-two thousand, forty-nine".