64528822 has 4 divisors (see below), whose sum is σ = 96793236. Its totient is φ = 32264410.

The previous prime is 64528819. The next prime is 64528843. The reversal of 64528822 is 22882546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22882546 = 2 ⋅11441273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16132204 + ... + 16132207.

It is an arithmetic number, because the mean of its divisors is an integer number (24198309).

Almost surely, 2^64528822 is an apocalyptic number.

64528822 is a deficient number, since it is larger than the sum of its proper divisors (32264414).

64528822 is a wasteful number, since it uses less digits than its factorization.

64528822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32264413.

The product of its digits is 61440, while the sum is 37.

The square root of 64528822 is about 8032.9833810360. The cubic root of 64528822 is about 401.0986919271.

The spelling of 64528822 in words is "sixty-four million, five hundred twenty-eight thousand, eight hundred twenty-two".