61613573 has 8 divisors (see below), whose sum is σ = 73477248. Its totient is φ = 50515344.

The previous prime is 61613567. The next prime is 61613581. The reversal of 61613573 is 37531616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61613573 - 2⁸ = 61613317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61613873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191186 + ... + 191507.

It is an arithmetic number, because the mean of its divisors is an integer number (9184656).

Almost surely, 2^61613573 is an apocalyptic number.

It is an amenable number.

61613573 is a deficient number, since it is larger than the sum of its proper divisors (11863675).

61613573 is a wasteful number, since it uses less digits than its factorization.

61613573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382723.

The product of its digits is 11340, while the sum is 32.

The square root of 61613573 is about 7849.4313806797. The cubic root of 61613573 is about 394.9651691768.

The spelling of 61613573 in words is "sixty-one million, six hundred thirteen thousand, five hundred seventy-three".