61351056 has 90 divisors (see below), whose sum is σ = 185994978. Its totient is φ = 18869760.

The previous prime is 61351049. The next prime is 61351093. The reversal of 61351056 is 65015316.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8294400 + 53056656 = 2880^2 + 7284^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23076 + ... + 25596.

Almost surely, 2^61351056 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 61351056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92997489).

61351056 is an abundant number, since it is smaller than the sum of its proper divisors (124643922).

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

61351056 is a wasteful number, since it uses less digits than its factorization.

61351056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2539 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 61351056 is about 7832.6914914351. The cubic root of 61351056 is about 394.4034278112.

The spelling of 61351056 in words is "sixty-one million, three hundred fifty-one thousand, fifty-six".