61065653 has 4 divisors (see below), whose sum is σ = 66617088. Its totient is φ = 55514220.

The previous prime is 61065647. The next prime is 61065661. The reversal of 61065653 is 35656016.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61065653 - 2²⁰ = 60017077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61065353) 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, 2775701 + ... + 2775722.

It is an arithmetic number, because the mean of its divisors is an integer number (16654272).

Almost surely, 2^61065653 is an apocalyptic number.

It is an amenable number.

61065653 is a deficient number, since it is larger than the sum of its proper divisors (5551435).

61065653 is a wasteful number, since it uses less digits than its factorization.

61065653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551434.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 61065653 is about 7814.4515482534. The cubic root of 61065653 is about 393.7908932753.

The spelling of 61065653 in words is "sixty-one million, sixty-five thousand, six hundred fifty-three".