60501561 has 4 divisors (see below), whose sum is σ = 80668752. Its totient is φ = 40334372.

The previous prime is 60501547. The next prime is 60501583. The reversal of 60501561 is 16510506.

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 60501561 - 2¹⁴ = 60485177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (60501761) 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, 10083591 + ... + 10083596.

It is an arithmetic number, because the mean of its divisors is an integer number (20167188).

Almost surely, 2^60501561 is an apocalyptic number.

It is an amenable number.

60501561 is a deficient number, since it is larger than the sum of its proper divisors (20167191).

60501561 is a wasteful number, since it uses less digits than its factorization.

60501561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20167190.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 60501561 is about 7778.2749372853. The cubic root of 60501561 is about 392.5745968267.

The spelling of 60501561 in words is "sixty million, five hundred one thousand, five hundred sixty-one".