61000755 has 16 divisors (see below), whose sum is σ = 97751040. Its totient is φ = 32483808.

The previous prime is 61000747. The next prime is 61000759. The reversal of 61000755 is 55700016.

61000755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61000755 - 2³ = 61000747 is a prime.

It is a super-2 number, since 2×61000755² = 7442184221140050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61000759) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8334 + ... + 13836.

It is an arithmetic number, because the mean of its divisors is an integer number (6109440).

Almost surely, 2^61000755 is an apocalyptic number.

61000755 is a deficient number, since it is larger than the sum of its proper divisors (36750285).

61000755 is a wasteful number, since it uses less digits than its factorization.

61000755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 61000755 is about 7810.2980096793. The cubic root of 61000755 is about 393.6513423775.

The spelling of 61000755 in words is "sixty-one million, seven hundred fifty-five", and thus it is an aban number.