63505895 has 8 divisors (see below), whose sum is σ = 76329456. Its totient is φ = 50723136.

The previous prime is 63505859. The next prime is 63505901. The reversal of 63505895 is 59850536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63505895 - 2⁶ = 63505831 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 7 ways as a sum of consecutive naturals, for example, 6662 + ... + 13091.

It is an arithmetic number, because the mean of its divisors is an integer number (9541182).

Almost surely, 2^63505895 is an apocalyptic number.

63505895 is a deficient number, since it is larger than the sum of its proper divisors (12823561).

63505895 is a wasteful number, since it uses less digits than its factorization.

63505895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20401.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 63505895 is about 7969.0586018676. The cubic root of 63505895 is about 398.9679540765.

The spelling of 63505895 in words is "sixty-three million, five hundred five thousand, eight hundred ninety-five".