61612585 has 8 divisors (see below), whose sum is σ = 75933576. Its totient is φ = 47957760.

The previous prime is 61612547. The next prime is 61612591. The reversal of 61612585 is 58521616.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9585216 + 52027369 = 3096^2 + 7213^2 .

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

It is not a de Polignac number, because 61612585 - 2⁷ = 61612457 is a prime.

It is a super-2 number, since 2×61612585² = 7592221260764450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 61612585.

It is an unprimeable number.

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, 166336 + ... + 166705.

It is an arithmetic number, because the mean of its divisors is an integer number (9491697).

Almost surely, 2^61612585 is an apocalyptic number.

It is an amenable number.

61612585 is a deficient number, since it is larger than the sum of its proper divisors (14320991).

61612585 is a wasteful number, since it uses less digits than its factorization.

61612585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333083.

The product of its digits is 14400, while the sum is 34.

The square root of 61612585 is about 7849.3684459324. The cubic root of 61612585 is about 394.9630580203.

The spelling of 61612585 in words is "sixty-one million, six hundred twelve thousand, five hundred eighty-five".