61612975 has 24 divisors (see below), whose sum is σ = 80744832. Its totient is φ = 46543200.

The previous prime is 61612951. The next prime is 61612997. The reversal of 61612975 is 57921616.

It is not a de Polignac number, because 61612975 - 2²¹ = 59515823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47080 + ... + 48370.

It is an arithmetic number, because the mean of its divisors is an integer number (3364368).

Almost surely, 2^61612975 is an apocalyptic number.

61612975 is a deficient number, since it is larger than the sum of its proper divisors (19131857).

61612975 is a wasteful number, since it uses less digits than its factorization.

61612975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1402 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 61612975 is about 7849.3932886561. The cubic root of 61612975 is about 394.9638913743.

The spelling of 61612975 in words is "sixty-one million, six hundred twelve thousand, nine hundred seventy-five".