64485252 has 72 divisors (see below), whose sum is σ = 176606976. Its totient is φ = 19721664.

The previous prime is 64485247. The next prime is 64485257. The reversal of 64485252 is 25258446.

It is a happy number.

64485252 is a `hidden beast` number, since 644 + 8 + 5 + 2 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (64485247) and next prime (64485257).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64485257) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 105933 + ... + 106539.

Almost surely, 2^64485252 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 64485252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88303488).

64485252 is an abundant number, since it is smaller than the sum of its proper divisors (112121724).

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

64485252 is a wasteful number, since it uses less digits than its factorization.

64485252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 852 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 64485252 is about 8030.2709792385. The cubic root of 64485252 is about 401.0083973673.

The spelling of 64485252 in words is "sixty-four million, four hundred eighty-five thousand, two hundred fifty-two".