63402056 has 8 divisors (see below), whose sum is σ = 118878870. Its totient is φ = 31701024.

The previous prime is 63402047. The next prime is 63402089. The reversal of 63402056 is 65020436.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 1779556 = 7850^2 + 1334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3962621 + ... + 3962636.

Almost surely, 2^63402056 is an apocalyptic number.

It is an amenable number.

63402056 is a deficient number, since it is larger than the sum of its proper divisors (55476814).

63402056 is a wasteful number, since it uses less digits than its factorization.

63402056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7925263 (or 7925259 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 63402056 is about 7962.5408005234. The cubic root of 63402056 is about 398.7503835454.

The spelling of 63402056 in words is "sixty-three million, four hundred two thousand, fifty-six".