61235568 has 80 divisors (see below), whose sum is σ = 183440640. Its totient is φ = 19521216.

The previous prime is 61235567. The next prime is 61235579. The reversal of 61235568 is 86553216.

61235568 is a `hidden beast` number, since 61 + 2 + 35 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61235561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6855 + ... + 13017.

It is an arithmetic number, because the mean of its divisors is an integer number (2293008).

Almost surely, 2^61235568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61235568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91720320).

61235568 is an abundant number, since it is smaller than the sum of its proper divisors (122205072).

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

61235568 is a wasteful number, since it uses less digits than its factorization.

61235568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203 (or 6191 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 61235568 is about 7825.3158402712. The cubic root of 61235568 is about 394.1557957054.

The spelling of 61235568 in words is "sixty-one million, two hundred thirty-five thousand, five hundred sixty-eight".