61051056 has 80 divisors (see below), whose sum is σ = 176119680. Its totient is φ = 18063360.

The previous prime is 61051051. The next prime is 61051069. The reversal of 61051056 is 65015016.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61051051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21360 + ... + 24048.

It is an arithmetic number, because the mean of its divisors is an integer number (2201496).

Almost surely, 2^61051056 is an apocalyptic number.

61051056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61051056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88059840).

61051056 is an abundant number, since it is smaller than the sum of its proper divisors (115068624).

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

61051056 is a wasteful number, since it uses less digits than its factorization.

61051056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 61051056 is about 7813.5175177381. The cubic root of 61051056 is about 393.7595138039.

The spelling of 61051056 in words is "sixty-one million, fifty-one thousand, fifty-six".