63275780 has 24 divisors (see below), whose sum is σ = 133066752. Its totient is φ = 25274592.

The previous prime is 63275777. The next prime is 63275803. The reversal of 63275780 is 8757236.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15869 + ... + 19451.

It is an arithmetic number, because the mean of its divisors is an integer number (5544448).

Almost surely, 2^63275780 is an apocalyptic number.

It is an amenable number.

63275780 is an abundant number, since it is smaller than the sum of its proper divisors (69790972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63275780 is a wasteful number, since it uses less digits than its factorization.

63275780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 63275780 is about 7954.6074698881. The cubic root of 63275780 is about 398.4854811524.

The spelling of 63275780 in words is "sixty-three million, two hundred seventy-five thousand, seven hundred eighty".