64262251 has 2 divisors, whose sum is σ = 64262252. Its totient is φ = 64262250.

The previous prime is 64262243. The next prime is 64262267. The reversal of 64262251 is 15226246.

64262251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64262251 - 2³ = 64262243 is a prime.

It is not a weakly prime, because it can be changed into another prime (64262281) 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 as a sum of consecutive naturals, namely, 32131125 + 32131126.

It is an arithmetic number, because the mean of its divisors is an integer number (32131126).

Almost surely, 2^64262251 is an apocalyptic number.

64262251 is a deficient number, since it is larger than the sum of its proper divisors (1).

64262251 is an equidigital number, since it uses as much as digits as its factorization.

64262251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 64262251 is about 8016.3739308992. The cubic root of 64262251 is about 400.5456116813.

Adding to 64262251 its reverse (15226246), we get a palindrome (79488497).

The spelling of 64262251 in words is "sixty-four million, two hundred sixty-two thousand, two hundred fifty-one".