61064985 has 32 divisors (see below), whose sum is σ = 102523392. Its totient is φ = 31000320.

The previous prime is 61064963. The next prime is 61064987. The reversal of 61064985 is 58946016.

It is not a de Polignac number, because 61064985 - 2⁶ = 61064921 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61064987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24915 + ... + 27255.

It is an arithmetic number, because the mean of its divisors is an integer number (3203856).

Almost surely, 2^61064985 is an apocalyptic number.

It is an amenable number.

61064985 is a deficient number, since it is larger than the sum of its proper divisors (41458407).

61064985 is a wasteful number, since it uses less digits than its factorization.

61064985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 61064985 is about 7814.4088068132. The cubic root of 61064985 is about 393.7894573711.

The spelling of 61064985 in words is "sixty-one million, sixty-four thousand, nine hundred eighty-five".