61564614 has 8 divisors (see below), whose sum is σ = 123129240. Its totient is φ = 20521536.

The previous prime is 61564609. The next prime is 61564619. The reversal of 61564614 is 41646516.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61564609) and next prime (61564619).

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

61564614 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61564619) 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, 5130379 + ... + 5130390.

It is an arithmetic number, because the mean of its divisors is an integer number (15391155).

Almost surely, 2^61564614 is an apocalyptic number.

61564614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61564614 is a wasteful number, since it uses less digits than its factorization.

61564614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260774.

The product of its digits is 17280, while the sum is 33.

The square root of 61564614 is about 7846.3121273628. The cubic root of 61564614 is about 394.8605265205.

The spelling of 61564614 in words is "sixty-one million, five hundred sixty-four thousand, six hundred fourteen".