61890059 has 16 divisors (see below), whose sum is σ = 77366016. Its totient is φ = 48098400.

The previous prime is 61890053. The next prime is 61890067. The reversal of 61890059 is 95009816.

61890059 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 61890059 - 2¹² = 61885963 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (61890053) 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, 36989 + ... + 38625.

It is an arithmetic number, because the mean of its divisors is an integer number (4835376).

Almost surely, 2^61890059 is an apocalyptic number.

61890059 is a deficient number, since it is larger than the sum of its proper divisors (15475957).

61890059 is a wasteful number, since it uses less digits than its factorization.

61890059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 61890059 is about 7867.0235159176. The cubic root of 61890059 is about 395.5550792397. Note that the first 3 decimals are identical.

The spelling of 61890059 in words is "sixty-one million, eight hundred ninety thousand, fifty-nine".