61606544 has 20 divisors (see below), whose sum is σ = 119484540. Its totient is φ = 30771840.

The previous prime is 61606541. The next prime is 61606547. The reversal of 61606544 is 44560616.

It is an interprime number because it is at equal distance from previous prime (61606541) and next prime (61606547).

It can be written as a sum of positive squares in 2 ways, for example, as 2930944 + 58675600 = 1712^2 + 7660^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61606544.

It is not an unprimeable number, because it can be changed into a prime (61606541) 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, 28742 + ... + 30810.

It is an arithmetic number, because the mean of its divisors is an integer number (5974227).

Almost surely, 2^61606544 is an apocalyptic number.

It is an amenable number.

61606544 is a deficient number, since it is larger than the sum of its proper divisors (57877996).

61606544 is a wasteful number, since it uses less digits than its factorization.

61606544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 61606544 is about 7848.9836284706. The cubic root of 61606544 is about 394.9501491327.

The spelling of 61606544 in words is "sixty-one million, six hundred six thousand, five hundred forty-four".