61982573 has 4 divisors (see below), whose sum is σ = 62017440. Its totient is φ = 61947708.

The previous prime is 61982521. The next prime is 61982581. The reversal of 61982573 is 37528916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61982573 - 2²⁴ = 45205357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61982573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61982513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14615 + ... + 18372.

It is an arithmetic number, because the mean of its divisors is an integer number (15504360).

Almost surely, 2^61982573 is an apocalyptic number.

It is an amenable number.

61982573 is a deficient number, since it is larger than the sum of its proper divisors (34867).

61982573 is a wasteful number, since it uses less digits than its factorization.

61982573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34866.

The product of its digits is 90720, while the sum is 41.

The square root of 61982573 is about 7872.9011806322. The cubic root of 61982573 is about 395.7520746022.

The spelling of 61982573 in words is "sixty-one million, nine hundred eighty-two thousand, five hundred seventy-three".