61651056 has 40 divisors (see below), whose sum is σ = 160239744. Its totient is φ = 20424640.

The previous prime is 61651049. The next prime is 61651069. The reversal of 61651056 is 65015616.

61651056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4171 + ... + 11861.

Almost surely, 2^61651056 is an apocalyptic number.

It is an amenable number.

61651056 is an abundant number, since it is smaller than the sum of its proper divisors (98588688).

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

61651056 is a wasteful number, since it uses less digits than its factorization.

61651056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7869 (or 7863 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 61651056 is about 7851.8186428368. The cubic root of 61651056 is about 395.0452461122.

The spelling of 61651056 in words is "sixty-one million, six hundred fifty-one thousand, fifty-six".