61055056 has 40 divisors (see below), whose sum is σ = 125750880. Its totient is φ = 28635264.

The previous prime is 61055051. The next prime is 61055081. The reversal of 61055056 is 65055016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61055051) 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, 31590 + ... + 33466.

It is an arithmetic number, because the mean of its divisors is an integer number (3143772).

Almost surely, 2^61055056 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 61055056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62875440).

61055056 is an abundant number, since it is smaller than the sum of its proper divisors (64695824).

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

61055056 is a wasteful number, since it uses less digits than its factorization.

61055056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 61055056 is about 7813.7734802079. The cubic root of 61055056 is about 393.7681131837.

It can be divided in two parts, 6 and 1055056, that multiplied together give a palindrome (6330336).

The spelling of 61055056 in words is "sixty-one million, fifty-five thousand, fifty-six".