64252243 has 32 divisors (see below), whose sum is σ = 78151680. Its totient is φ = 52164000.

The previous prime is 64252241. The next prime is 64252247. The reversal of 64252243 is 34225246.

It is a cyclic number.

It is not a de Polignac number, because 64252243 - 2¹ = 64252241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64252241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304408 + ... + 304618.

It is an arithmetic number, because the mean of its divisors is an integer number (2442240).

Almost surely, 2^64252243 is an apocalyptic number.

64252243 is a deficient number, since it is larger than the sum of its proper divisors (13899437).

64252243 is a wasteful number, since it uses less digits than its factorization.

64252243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its digits is 11520, while the sum is 28.

The square root of 64252243 is about 8015.7496842154. The cubic root of 64252243 is about 400.5248173657.

Adding to 64252243 its reverse (34225246), we get a palindrome (98477489).

It can be divided in two parts, 6425 and 2243, that added together give a palindrome (8668).

The spelling of 64252243 in words is "sixty-four million, two hundred fifty-two thousand, two hundred forty-three".