61716573 has 20 divisors (see below), whose sum is σ = 92405280. Its totient is φ = 41050152.

The previous prime is 61716547. The next prime is 61716587. The reversal of 61716573 is 37561716.

It is not a de Polignac number, because 61716573 - 2⁶ = 61716509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61716073) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69136 + ... + 70022.

It is an arithmetic number, because the mean of its divisors is an integer number (4620264).

Almost surely, 2^61716573 is an apocalyptic number.

It is an amenable number.

61716573 is a deficient number, since it is larger than the sum of its proper divisors (30688707).

61716573 is an equidigital number, since it uses as much as digits as its factorization.

61716573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1749 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 61716573 is about 7855.9896257569. The cubic root of 61716573 is about 395.1851356674.

The spelling of 61716573 in words is "sixty-one million, seven hundred sixteen thousand, five hundred seventy-three".