63542656 has 16 divisors (see below), whose sum is σ = 126589140. Its totient is φ = 31771264.

The previous prime is 63542639. The next prime is 63542659. The reversal of 63542656 is 65624536.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63542659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248086 + ... + 248341.

Almost surely, 2^63542656 is an apocalyptic number.

It is an amenable number.

63542656 is a deficient number, since it is larger than the sum of its proper divisors (63046484).

63542656 is an equidigital number, since it uses as much as digits as its factorization.

63542656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496441 (or 496429 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 63542656 is about 7971.3647514086. The cubic root of 63542656 is about 399.0449213771.

The spelling of 63542656 in words is "sixty-three million, five hundred forty-two thousand, six hundred fifty-six".