60706521 has 6 divisors (see below), whose sum is σ = 87687210. Its totient is φ = 40471008.

The previous prime is 60706517. The next prime is 60706543. The reversal of 60706521 is 12560706.

60706521 is a `hidden beast` number, since 6 + 0 + 7 + 0 + 652 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55711296 + 4995225 = 7464^2 + 2235^2 .

It is not a de Polignac number, because 60706521 - 2² = 60706517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (60706561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3372576 + ... + 3372593.

It is an arithmetic number, because the mean of its divisors is an integer number (14614535).

Almost surely, 2^60706521 is an apocalyptic number.

It is an amenable number.

60706521 is a deficient number, since it is larger than the sum of its proper divisors (26980689).

60706521 is a wasteful number, since it uses less digits than its factorization.

60706521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745175 (or 6745172 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 60706521 is about 7791.4389556744. The cubic root of 60706521 is about 393.0174030325.

The spelling of 60706521 in words is "sixty million, seven hundred six thousand, five hundred twenty-one".