561972302 has 4 divisors (see below), whose sum is σ = 842958456. Its totient is φ = 280986150.

The previous prime is 561972287. The next prime is 561972319. The reversal of 561972302 is 203279165.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140493074 + ... + 140493077.

It is an arithmetic number, because the mean of its divisors is an integer number (210739614).

Almost surely, 2^561972302 is an apocalyptic number.

561972302 is a deficient number, since it is larger than the sum of its proper divisors (280986154).

561972302 is a wasteful number, since it uses less digits than its factorization.

561972302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280986153.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 561972302 is about 23705.9549902551. The cubic root of 561972302 is about 825.2235951034.

The spelling of 561972302 in words is "five hundred sixty-one million, nine hundred seventy-two thousand, three hundred two".