61085603 has 4 divisors (see below), whose sum is σ = 61566720. Its totient is φ = 60604488.

The previous prime is 61085587. The next prime is 61085611. The reversal of 61085603 is 30658016.

61085603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61085603 - 2⁴ = 61085587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61085623) 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 3 ways as a sum of consecutive naturals, for example, 240368 + ... + 240621.

It is an arithmetic number, because the mean of its divisors is an integer number (15391680).

Almost surely, 2^61085603 is an apocalyptic number.

61085603 is a deficient number, since it is larger than the sum of its proper divisors (481117).

61085603 is a wasteful number, since it uses less digits than its factorization.

61085603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481116.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61085603 is about 7815.7279251519. The cubic root of 61085603 is about 393.8337721145.

It can be divided in two parts, 6108 and 5603, that added together give a palindrome (11711).

The spelling of 61085603 in words is "sixty-one million, eighty-five thousand, six hundred three".