63455949 has 12 divisors (see below), whose sum is σ = 91728000. Its totient is φ = 42271944.

The previous prime is 63455939. The next prime is 63455957. The reversal of 63455949 is 94955436.

63455949 is a `hidden beast` number, since 634 + 5 + 5 + 9 + 4 + 9 = 666.

It is not a de Polignac number, because 63455949 - 2¹² = 63451853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63455939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20122 + ... + 23060.

It is an arithmetic number, because the mean of its divisors is an integer number (7644000).

Almost surely, 2^63455949 is an apocalyptic number.

It is an amenable number.

63455949 is a deficient number, since it is larger than the sum of its proper divisors (28272051).

63455949 is a wasteful number, since it uses less digits than its factorization.

63455949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5341 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 63455949 is about 7965.9242401620. The cubic root of 63455949 is about 398.8633334491.

The spelling of 63455949 in words is "sixty-three million, four hundred fifty-five thousand, nine hundred forty-nine".