64851952 has 40 divisors (see below), whose sum is σ = 138049200. Its totient is φ = 29268480.

The previous prime is 64851937. The next prime is 64851961. The reversal of 64851952 is 25915846.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 24988 + ... + 27460.

It is an arithmetic number, because the mean of its divisors is an integer number (3451230).

Almost surely, 2^64851952 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 64851952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69024600).

64851952 is an abundant number, since it is smaller than the sum of its proper divisors (73197248).

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

64851952 is a wasteful number, since it uses less digits than its factorization.

64851952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641 (or 2635 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 64851952 is about 8053.0709670287. The cubic root of 64851952 is about 401.7670820570.

The spelling of 64851952 in words is "sixty-four million, eight hundred fifty-one thousand, nine hundred fifty-two".