61855296 has 56 divisors (see below), whose sum is σ = 165165024. Its totient is φ = 20428800.

The previous prime is 61855291. The next prime is 61855319. The reversal of 61855296 is 69255816.

It is not an unprimeable number, because it can be changed into a prime (61855291) 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, 20271 + ... + 23121.

Almost surely, 2^61855296 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 61855296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82582512).

61855296 is an abundant number, since it is smaller than the sum of its proper divisors (103309728).

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

61855296 is a wasteful number, since it uses less digits than its factorization.

61855296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2969 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 61855296 is about 7864.8137930914. The cubic root of 61855296 is about 395.4810056497.

The spelling of 61855296 in words is "sixty-one million, eight hundred fifty-five thousand, two hundred ninety-six".