64896556 has 12 divisors (see below), whose sum is σ = 115169040. Its totient is φ = 31991120.

The previous prime is 64896551. The next prime is 64896617. The reversal of 64896556 is 65569846.

It is a happy number.

It is a super-2 number, since 2×64896556² = 8423125961322272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64896551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113971 + ... + 114538.

It is an arithmetic number, because the mean of its divisors is an integer number (9597420).

Almost surely, 2^64896556 is an apocalyptic number.

It is an amenable number.

64896556 is a deficient number, since it is larger than the sum of its proper divisors (50272484).

64896556 is a wasteful number, since it uses less digits than its factorization.

64896556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228584 (or 228582 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The square root of 64896556 is about 8055.8398693122. The cubic root of 64896556 is about 401.8591703262.

The spelling of 64896556 in words is "sixty-four million, eight hundred ninety-six thousand, five hundred fifty-six".