561201456 has 20 divisors (see below), whose sum is σ = 1449770552. Its totient is φ = 187067136.

The previous prime is 561201439. The next prime is 561201469. The reversal of 561201456 is 654102165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5845801 + ... + 5845896.

Almost surely, 2^561201456 is an apocalyptic number.

It is an amenable number.

561201456 is an abundant number, since it is smaller than the sum of its proper divisors (888569096).

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

561201456 is a wasteful number, since it uses less digits than its factorization.

561201456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11691708 (or 11691702 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 561201456 is about 23689.6909224245. The cubic root of 561201456 is about 824.8461083020.

The spelling of 561201456 in words is "five hundred sixty-one million, two hundred one thousand, four hundred fifty-six".