64311253 has 2 divisors, whose sum is σ = 64311254. Its totient is φ = 64311252.

The previous prime is 64311157. The next prime is 64311259. The reversal of 64311253 is 35211346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32524209 + 31787044 = 5703^2 + 5638^2 .

It is a cyclic number.

It is not a de Polignac number, because 64311253 - 2²⁵ = 30756821 is a prime.

It is equal to p_3802408 and since 64311253 and 3802408 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64311259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32155626 + 32155627.

It is an arithmetic number, because the mean of its divisors is an integer number (32155627).

Almost surely, 2^64311253 is an apocalyptic number.

It is an amenable number.

64311253 is a deficient number, since it is larger than the sum of its proper divisors (1).

64311253 is an equidigital number, since it uses as much as digits as its factorization.

64311253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 64311253 is about 8019.4297178789. The cubic root of 64311253 is about 400.6473953828.

Adding to 64311253 its reverse (35211346), we get a palindrome (99522599).

The spelling of 64311253 in words is "sixty-four million, three hundred eleven thousand, two hundred fifty-three".