61010556 has 12 divisors (see below), whose sum is σ = 142357992. Its totient is φ = 20336848.

The previous prime is 61010549. The next prime is 61010597. The reversal of 61010556 is 65501016.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542095 + ... + 2542118.

It is an arithmetic number, because the mean of its divisors is an integer number (11863166).

Almost surely, 2^61010556 is an apocalyptic number.

It is an amenable number.

61010556 is an abundant number, since it is smaller than the sum of its proper divisors (81347436).

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

61010556 is a wasteful number, since it uses less digits than its factorization.

61010556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084220 (or 5084218 counting only the distinct ones).

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

The square root of 61010556 is about 7810.9254253257. The cubic root of 61010556 is about 393.6724239209.

The spelling of 61010556 in words is "sixty-one million, ten thousand, five hundred fifty-six".