63887255 has 4 divisors (see below), whose sum is σ = 76664712. Its totient is φ = 51109800.

The previous prime is 63887251. The next prime is 63887267. The reversal of 63887255 is 55278836.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63887255 - 2² = 63887251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63887251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6388721 + ... + 6388730.

It is an arithmetic number, because the mean of its divisors is an integer number (19166178).

Almost surely, 2^63887255 is an apocalyptic number.

63887255 is a deficient number, since it is larger than the sum of its proper divisors (12777457).

63887255 is a wasteful number, since it uses less digits than its factorization.

63887255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777456.

The product of its digits is 403200, while the sum is 44.

The square root of 63887255 is about 7992.9503313858. The cubic root of 63887255 is about 399.7649765203.

The spelling of 63887255 in words is "sixty-three million, eight hundred eighty-seven thousand, two hundred fifty-five".