64253210 has 24 divisors (see below), whose sum is σ = 134539380. Its totient is φ = 22029504.

The previous prime is 64253209. The next prime is 64253219. The reversal of 64253210 is 1235246.

It can be written as a sum of positive squares in 2 ways, for example, as 63792169 + 461041 = 7987^2 + 679^2 .

It is not an unprimeable number, because it can be changed into a prime (64253219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65075 + ... + 66054.

Almost surely, 2^64253210 is an apocalyptic number.

64253210 is an abundant number, since it is smaller than the sum of its proper divisors (70286170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64253210 is a wasteful number, since it uses less digits than its factorization.

64253210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131150 (or 131143 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 64253210 is about 8015.8100027383. The cubic root of 64253210 is about 400.5268266629.

Adding to 64253210 its reverse (1235246), we get a palindrome (65488456).

The spelling of 64253210 in words is "sixty-four million, two hundred fifty-three thousand, two hundred ten".