561950994 has 16 divisors (see below), whose sum is σ = 1226075040. Its totient is φ = 170288160.

The previous prime is 561950993. The next prime is 561950999. The reversal of 561950994 is 499059165.

It is not an unprimeable number, because it can be changed into a prime (561950993) 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, 4257139 + ... + 4257270.

It is an arithmetic number, because the mean of its divisors is an integer number (76629690).

Almost surely, 2^561950994 is an apocalyptic number.

561950994 is an abundant number, since it is smaller than the sum of its proper divisors (664124046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561950994 is a wasteful number, since it uses less digits than its factorization.

561950994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8514425.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 561950994 is about 23705.5055630543. The cubic root of 561950994 is about 825.2131651193.

The spelling of 561950994 in words is "five hundred sixty-one million, nine hundred fifty thousand, nine hundred ninety-four".