64251 has 18 divisors (see below), whose sum is σ = 103740. Its totient is φ = 38280.

The previous prime is 64237. The next prime is 64271. The reversal of 64251 is 15246.

It is a happy number.

It is not a de Polignac number, because 64251 - 2⁶ = 64187 is a prime.

64251 is a lucky number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64251.

It is not an unprimeable number, because it can be changed into a prime (64231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1060 + ... + 1118.

2⁶⁴²⁵¹ is an apocalyptic number.

64251 is a deficient number, since it is larger than the sum of its proper divisors (39489).

64251 is a wasteful number, since it uses less digits than its factorization.

64251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 73 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 64251 is about 253.4778096797. The cubic root of 64251 is about 40.0522234548.

Adding to 64251 its reverse (15246), we get a palindrome (79497).

The spelling of 64251 in words is "sixty-four thousand, two hundred fifty-one".