64351252 has 48 divisors (see below), whose sum is σ = 137415040. Its totient is φ = 25754112.

The previous prime is 64351247. The next prime is 64351253. The reversal of 64351252 is 25215346.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 64351252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64351253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38008 + ... + 39664.

Almost surely, 2^64351252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64351252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68707520).

64351252 is an abundant number, since it is smaller than the sum of its proper divisors (73063788).

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

64351252 is a wasteful number, since it uses less digits than its factorization.

64351252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760 (or 1758 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 64351252 is about 8021.9232108018. The cubic root of 64351252 is about 400.7304403304.

Adding to 64351252 its reverse (25215346), we get a palindrome (89566598).

The spelling of 64351252 in words is "sixty-four million, three hundred fifty-one thousand, two hundred fifty-two".