64251152 has 30 divisors (see below), whose sum is σ = 144812718. Its totient is φ = 27535872.

The previous prime is 64251149. The next prime is 64251157. The reversal of 64251152 is 25115246.

It can be written as a sum of positive squares in only one way, i.e., 48219136 + 16032016 = 6944^2 + 4004^2 .

It is not an unprimeable number, because it can be changed into a prime (64251157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40193 + ... + 41760.

Almost surely, 2^64251152 is an apocalyptic number.

It is an amenable number.

64251152 is an abundant number, since it is smaller than the sum of its proper divisors (80561566).

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

64251152 is a wasteful number, since it uses less digits than its factorization.

64251152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81975 (or 81962 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 64251152 is about 8015.6816304042. The cubic root of 64251152 is about 400.5225503888.

Adding to 64251152 its reverse (25115246), we get a palindrome (89366398).

The spelling of 64251152 in words is "sixty-four million, two hundred fifty-one thousand, one hundred fifty-two".