63780575 has 6 divisors (see below), whose sum is σ = 79087944. Its totient is φ = 51024440.

The previous prime is 63780553. The next prime is 63780601. The reversal of 63780575 is 57508736.

It is not a de Polignac number, because 63780575 - 2¹⁶ = 63715039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1275587 + ... + 1275636.

It is an arithmetic number, because the mean of its divisors is an integer number (13181324).

Almost surely, 2^63780575 is an apocalyptic number.

63780575 is a deficient number, since it is larger than the sum of its proper divisors (15307369).

63780575 is a wasteful number, since it uses less digits than its factorization.

63780575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551233 (or 2551228 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 63780575 is about 7986.2741625867. The cubic root of 63780575 is about 399.5423411540.

The spelling of 63780575 in words is "sixty-three million, seven hundred eighty thousand, five hundred seventy-five".