61612506 has 12 divisors (see below), whose sum is σ = 133493802. Its totient is φ = 20537496.

The previous prime is 61612483. The next prime is 61612519. The reversal of 61612506 is 60521616.

It is a happy number.

61612506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 60980481 + 632025 = 7809^2 + 795^2 .

It is a super-2 number, since 2×61612506² = 7592201791200072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61612506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1711441 + ... + 1711476.

Almost surely, 2^61612506 is an apocalyptic number.

61612506 is an abundant number, since it is smaller than the sum of its proper divisors (71881296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61612506 is a wasteful number, since it uses less digits than its factorization.

61612506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422925 (or 3422922 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61612506 is about 7849.3634136788. The cubic root of 61612506 is about 394.9628892123.

The spelling of 61612506 in words is "sixty-one million, six hundred twelve thousand, five hundred six".