60751521 has 24 divisors (see below), whose sum is σ = 90617384. Its totient is φ = 39191040.

The previous prime is 60751519. The next prime is 60751529. The reversal of 60751521 is 12515706.

60751521 is a `hidden beast` number, since 607 + 5 + 1 + 52 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 31979025 + 28772496 = 5655^2 + 5364^2 .

It is not a de Polignac number, because 60751521 - 2¹ = 60751519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60751529) 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 23 ways as a sum of consecutive naturals, for example, 79875 + ... + 80631.

Almost surely, 2^60751521 is an apocalyptic number.

It is an amenable number.

60751521 is a deficient number, since it is larger than the sum of its proper divisors (29865863).

60751521 is a wasteful number, since it uses less digits than its factorization.

60751521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 60751521 is about 7794.3262056447. The cubic root of 60751521 is about 393.1144898839.

The spelling of 60751521 in words is "sixty million, seven hundred fifty-one thousand, five hundred twenty-one".