60505561 has 4 divisors (see below), whose sum is σ = 61357824. Its totient is φ = 59653300.

The previous prime is 60505541. The next prime is 60505597. The reversal of 60505561 is 16550506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60505561 - 2²⁵ = 26951129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60505531) 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 3 ways as a sum of consecutive naturals, for example, 426025 + ... + 426166.

It is an arithmetic number, because the mean of its divisors is an integer number (15339456).

Almost surely, 2^60505561 is an apocalyptic number.

It is an amenable number.

60505561 is a deficient number, since it is larger than the sum of its proper divisors (852263).

60505561 is an equidigital number, since it uses as much as digits as its factorization.

60505561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852262.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 60505561 is about 7778.5320594570. The cubic root of 60505561 is about 392.5832481946.

It can be divided in two parts, 6050 and 5561, that added together give a palindrome (11611).

The spelling of 60505561 in words is "sixty million, five hundred five thousand, five hundred sixty-one".