61559716 has 9 divisors (see below), whose sum is σ = 107756971. Its totient is φ = 30772012.

The previous prime is 61559713. The next prime is 61559731. The reversal of 61559716 is 61795516.

The square root of 61559716 is 7846.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61559713) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13731 + ... + 17653.

Almost surely, 2^61559716 is an apocalyptic number.

61559716 is the 7846-th square number.

It is an amenable number.

61559716 is a deficient number, since it is larger than the sum of its proper divisors (46197255).

61559716 is an frugal number, since it uses more digits than its factorization.

61559716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7850 (or 3925 counting only the distinct ones).

The product of its digits is 56700, while the sum is 40.

The cubic root of 61559716 is about 394.8500547141.

The spelling of 61559716 in words is "sixty-one million, five hundred fifty-nine thousand, seven hundred sixteen".