64605522 has 16 divisors (see below), whose sum is σ = 132216480. Its totient is φ = 21034272.

The previous prime is 64605503. The next prime is 64605523. The reversal of 64605522 is 22550646.

It is a self number, because there is not a number n which added to its sum of digits gives 64605522.

It is not an unprimeable number, because it can be changed into a prime (64605523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124947 + ... + 125462.

It is an arithmetic number, because the mean of its divisors is an integer number (8263530).

Almost surely, 2^64605522 is an apocalyptic number.

64605522 is an abundant number, since it is smaller than the sum of its proper divisors (67610958).

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

64605522 is a wasteful number, since it uses less digits than its factorization.

64605522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250457.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 64605522 is about 8037.7560301368. The cubic root of 64605522 is about 401.2575464657.

The spelling of 64605522 in words is "sixty-four million, six hundred five thousand, five hundred twenty-two".