61655263 has 8 divisors (see below), whose sum is σ = 62375936. Its totient is φ = 60939000.

The previous prime is 61655207. The next prime is 61655317. The reversal of 61655263 is 36255616.

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

It is a cyclic number.

It is not a de Polignac number, because 61655263 - 2⁹ = 61654751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61655563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32758 + ... + 34588.

It is an arithmetic number, because the mean of its divisors is an integer number (7796992).

Almost surely, 2^61655263 is an apocalyptic number.

61655263 is a deficient number, since it is larger than the sum of its proper divisors (720673).

61655263 is a wasteful number, since it uses less digits than its factorization.

61655263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205.

The product of its digits is 32400, while the sum is 34.

The square root of 61655263 is about 7852.0865379847. The cubic root of 61655263 is about 395.0542317250.

The spelling of 61655263 in words is "sixty-one million, six hundred fifty-five thousand, two hundred sixty-three".