61035591 has 8 divisors (see below), whose sum is σ = 81647104. Its totient is φ = 40557240.

The previous prime is 61035589. The next prime is 61035631. The reversal of 61035591 is 19553016.

61035591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61035591 - 2¹ = 61035589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61035571) 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 7 ways as a sum of consecutive naturals, for example, 32215 + ... + 34056.

It is an arithmetic number, because the mean of its divisors is an integer number (10205888).

Almost surely, 2^61035591 is an apocalyptic number.

61035591 is a deficient number, since it is larger than the sum of its proper divisors (20611513).

61035591 is a wasteful number, since it uses less digits than its factorization.

61035591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66581.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 61035591 is about 7812.5278239505. The cubic root of 61035591 is about 393.7262629177.

The spelling of 61035591 in words is "sixty-one million, thirty-five thousand, five hundred ninety-one".