61061583 has 16 divisors (see below), whose sum is σ = 89652096. Its totient is φ = 36659040.

The previous prime is 61061579. The next prime is 61061621. The reversal of 61061583 is 38516016.

It is not a de Polignac number, because 61061583 - 2² = 61061579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61061583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5116 + ... + 12177.

It is an arithmetic number, because the mean of its divisors is an integer number (5603256).

Almost surely, 2^61061583 is an apocalyptic number.

61061583 is a deficient number, since it is larger than the sum of its proper divisors (28590513).

61061583 is a wasteful number, since it uses less digits than its factorization.

61061583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 61061583 is about 7814.1911289653. The cubic root of 61061583 is about 393.7821444153.

Adding to 61061583 its reverse (38516016), we get a palindrome (99577599).

The spelling of 61061583 in words is "sixty-one million, sixty-one thousand, five hundred eighty-three".