64413253 has 2 divisors, whose sum is σ = 64413254. Its totient is φ = 64413252.

The previous prime is 64413247. The next prime is 64413299. The reversal of 64413253 is 35231446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58951684 + 5461569 = 7678^2 + 2337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64413253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64413953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32206626 + 32206627.

It is an arithmetic number, because the mean of its divisors is an integer number (32206627).

Almost surely, 2^64413253 is an apocalyptic number.

It is an amenable number.

64413253 is a deficient number, since it is larger than the sum of its proper divisors (1).

64413253 is an equidigital number, since it uses as much as digits as its factorization.

64413253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 64413253 is about 8025.7867527115. The cubic root of 64413253 is about 400.8590973086.

Adding to 64413253 its reverse (35231446), we get a palindrome (99644699).

The spelling of 64413253 in words is "sixty-four million, four hundred thirteen thousand, two hundred fifty-three".