60866551 has 4 divisors (see below), whose sum is σ = 62161632. Its totient is φ = 59571472.

The previous prime is 60866549. The next prime is 60866651. The reversal of 60866551 is 15566806.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 60866551 - 2¹ = 60866549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60866551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60866501) 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, 647470 + ... + 647563.

It is an arithmetic number, because the mean of its divisors is an integer number (15540408).

Almost surely, 2^60866551 is an apocalyptic number.

60866551 is a deficient number, since it is larger than the sum of its proper divisors (1295081).

60866551 is a wasteful number, since it uses less digits than its factorization.

60866551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295080.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 60866551 is about 7801.7018015302. The cubic root of 60866551 is about 393.3624477316.

The spelling of 60866551 in words is "sixty million, eight hundred sixty-six thousand, five hundred fifty-one".