64755556 has 12 divisors (see below), whose sum is σ = 113522668. Its totient is φ = 32320512.

The previous prime is 64755547. The next prime is 64755569. The reversal of 64755556 is 65555746.

It can be written as a sum of positive squares in 2 ways, for example, as 54257956 + 10497600 = 7366^2 + 3240^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11721 + ... + 16336.

Almost surely, 2^64755556 is an apocalyptic number.

It is an amenable number.

64755556 is a deficient number, since it is larger than the sum of its proper divisors (48767112).

64755556 is a wasteful number, since it uses less digits than its factorization.

64755556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28638 (or 28636 counting only the distinct ones).

The product of its digits is 630000, while the sum is 43.

The square root of 64755556 is about 8047.0836953520. The cubic root of 64755556 is about 401.5679210288.

The spelling of 64755556 in words is "sixty-four million, seven hundred fifty-five thousand, five hundred fifty-six".