64221562 has 4 divisors (see below), whose sum is σ = 96332346. Its totient is φ = 32110780.

The previous prime is 64221541. The next prime is 64221583. The reversal of 64221562 is 26512246.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (64221541) and next prime (64221583).

It can be written as a sum of positive squares in only one way, i.e., 33074001 + 31147561 = 5751^2 + 5581^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64221562.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16055389 + ... + 16055392.

Almost surely, 2^64221562 is an apocalyptic number.

64221562 is a deficient number, since it is larger than the sum of its proper divisors (32110784).

64221562 is a wasteful number, since it uses less digits than its factorization.

64221562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32110783.

The product of its digits is 5760, while the sum is 28.

The square root of 64221562 is about 8013.8356609055. The cubic root of 64221562 is about 400.4610558645.

The spelling of 64221562 in words is "sixty-four million, two hundred twenty-one thousand, five hundred sixty-two".