60312561 has 4 divisors (see below), whose sum is σ = 80416752. Its totient is φ = 40208372.

The previous prime is 60312559. The next prime is 60312587. The reversal of 60312561 is 16521306.

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 60312561 - 2¹ = 60312559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60312361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10052091 + ... + 10052096.

It is an arithmetic number, because the mean of its divisors is an integer number (20104188).

Almost surely, 2^60312561 is an apocalyptic number.

It is an amenable number.

60312561 is a deficient number, since it is larger than the sum of its proper divisors (20104191).

60312561 is a wasteful number, since it uses less digits than its factorization.

60312561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20104190.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 60312561 is about 7766.1162108225. The cubic root of 60312561 is about 392.1653842791.

Adding to 60312561 its reverse (16521306), we get a palindrome (76833867).

The spelling of 60312561 in words is "sixty million, three hundred twelve thousand, five hundred sixty-one".