561772025 has 12 divisors (see below), whose sum is σ = 700104000. Its totient is φ = 447155280.

The previous prime is 561772009. The next prime is 561772039. The reversal of 561772025 is 520277165.

It is a happy number.

It is not a de Polignac number, because 561772025 - 2⁴ = 561772009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51485 + ... + 61434.

It is an arithmetic number, because the mean of its divisors is an integer number (58342000).

Almost surely, 2^561772025 is an apocalyptic number.

It is an amenable number.

561772025 is a deficient number, since it is larger than the sum of its proper divisors (138331975).

561772025 is a wasteful number, since it uses less digits than its factorization.

561772025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113128 (or 113123 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 561772025 is about 23701.7304220599. The cubic root of 561772025 is about 825.1255517522.

The spelling of 561772025 in words is "five hundred sixty-one million, seven hundred seventy-two thousand, twenty-five".