32280949561 has 9 divisors (see below), whose sum is σ = 37552771749. Its totient is φ = 27668307324.

The previous prime is 32280949529. The next prime is 32280949583. The reversal of 32280949561 is 16594908223.

The square root of 32280949561 is 179669.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 32280949561 - 2⁵ = 32280949529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32280949861) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1244850 + ... + 1270516.

Almost surely, 2^32280949561 is an apocalyptic number.

32280949561 is the 179669-th square number.

32280949561 is the 89835-th centered octagonal number.

It is an amenable number.

32280949561 is a deficient number, since it is larger than the sum of its proper divisors (5271822188).

32280949561 is an frugal number, since it uses more digits than its factorization.

32280949561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51348 (or 25674 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

Multiplying 32280949561 by its sum of digits (49), we get a square (1581766528489 = 1257683²).

32280949561 divided by its sum of digits (49) gives a square (658794889 = 25667²).

The spelling of 32280949561 in words is "thirty-two billion, two hundred eighty million, nine hundred forty-nine thousand, five hundred sixty-one".