64520192 has 64 divisors (see below), whose sum is σ = 141555600. Its totient is φ = 29163520.

The previous prime is 64520189. The next prime is 64520231. The reversal of 64520192 is 29102546.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360359 + ... + 360537.

Almost surely, 2^64520192 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 64520192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70777800).

64520192 is an abundant number, since it is smaller than the sum of its proper divisors (77035408).

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

64520192 is an equidigital number, since it uses as much as digits as its factorization.

64520192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 64520192 is about 8032.4462027455. The cubic root of 64520192 is about 401.0808103256.

The spelling of 64520192 in words is "sixty-four million, five hundred twenty thousand, one hundred ninety-two".