63455944 has 16 divisors (see below), whose sum is σ = 123083100. Its totient is φ = 30633792.

The previous prime is 63455939. The next prime is 63455957. The reversal of 63455944 is 44955436.

It can be written as a sum of positive squares in 2 ways, for example, as 63393444 + 62500 = 7962^2 + 250^2 .

It is a super-2 number, since 2×63455944² = 8053313657862272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63455897 and 63455906.

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, 136527 + ... + 136990.

Almost surely, 2^63455944 is an apocalyptic number.

It is an amenable number.

63455944 is a deficient number, since it is larger than the sum of its proper divisors (59627156).

63455944 is a wasteful number, since it uses less digits than its factorization.

63455944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273552 (or 273548 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 63455944 is about 7965.9239263252. The cubic root of 63455944 is about 398.8633229730.

The spelling of 63455944 in words is "sixty-three million, four hundred fifty-five thousand, nine hundred forty-four".