64337253 has 4 divisors (see below), whose sum is σ = 85783008. Its totient is φ = 42891500.

The previous prime is 64337237. The next prime is 64337257. The reversal of 64337253 is 35273346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64337253 - 2⁴ = 64337237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64337257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10722873 + ... + 10722878.

It is an arithmetic number, because the mean of its divisors is an integer number (21445752).

Almost surely, 2^64337253 is an apocalyptic number.

It is an amenable number.

64337253 is a deficient number, since it is larger than the sum of its proper divisors (21445755).

64337253 is a wasteful number, since it uses less digits than its factorization.

64337253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21445754.

The product of its digits is 45360, while the sum is 33.

The square root of 64337253 is about 8021.0506169703. The cubic root of 64337253 is about 400.7013798636.

It can be divided in two parts, 64337 and 253, that multiplied together give a palindrome (16277261).

The spelling of 64337253 in words is "sixty-four million, three hundred thirty-seven thousand, two hundred fifty-three".