561352870 has 16 divisors (see below), whose sum is σ = 1088161200. Its totient is φ = 207268704.

The previous prime is 561352861. The next prime is 561352873. The reversal of 561352870 is 78253165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561352873) 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, 2158920 + ... + 2159179.

It is an arithmetic number, because the mean of its divisors is an integer number (68010075).

Almost surely, 2^561352870 is an apocalyptic number.

561352870 is a deficient number, since it is larger than the sum of its proper divisors (526808330).

561352870 is a wasteful number, since it uses less digits than its factorization.

561352870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318119.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 561352870 is about 23692.8864851879. The cubic root of 561352870 is about 824.9202836964.

The spelling of 561352870 in words is "five hundred sixty-one million, three hundred fifty-two thousand, eight hundred seventy".