561122507 has 8 divisors (see below), whose sum is σ = 612433920. Its totient is φ = 509861160.

The previous prime is 561122461. The next prime is 561122533. The reversal of 561122507 is 705221165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561122507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561122507.

It is not an unprimeable number, because it can be changed into a prime (561122557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13238 + ... + 36020.

It is an arithmetic number, because the mean of its divisors is an integer number (76554240).

Almost surely, 2^561122507 is an apocalyptic number.

561122507 is a deficient number, since it is larger than the sum of its proper divisors (51311413).

561122507 is a wasteful number, since it uses less digits than its factorization.

561122507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25033.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 561122507 is about 23688.0245482818. The cubic root of 561122507 is about 824.8074271067.

The spelling of 561122507 in words is "five hundred sixty-one million, one hundred twenty-two thousand, five hundred seven".