561772525 has 12 divisors (see below), whose sum is σ = 733261600. Its totient is φ = 425764080.

The previous prime is 561772459. The next prime is 561772537. The reversal of 561772525 is 525277165.

It is a de Polignac number, because none of the positive numbers 2^k-561772525 is a prime.

It is a congruent number.

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, 590865 + ... + 591814.

Almost surely, 2^561772525 is an apocalyptic number.

It is an amenable number.

561772525 is a deficient number, since it is larger than the sum of its proper divisors (171489075).

561772525 is a wasteful number, since it uses less digits than its factorization.

561772525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182708 (or 1182703 counting only the distinct ones).

The product of its digits is 147000, while the sum is 40.

The square root of 561772525 is about 23701.7409698106. The cubic root of 561772525 is about 825.1257965506.

The spelling of 561772525 in words is "five hundred sixty-one million, seven hundred seventy-two thousand, five hundred twenty-five".