63875953 has 8 divisors (see below), whose sum is σ = 67708872. Its totient is φ = 60051456.

The previous prime is 63875947. The next prime is 63875963. The reversal of 63875953 is 35957836.

It can be written as a sum of positive squares in 4 ways, for example, as 25522704 + 38353249 = 5052^2 + 6193^2 .

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 63875953 - 2¹³ = 63867761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63875963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20601 + ... + 23497.

It is an arithmetic number, because the mean of its divisors is an integer number (8463609).

Almost surely, 2^63875953 is an apocalyptic number.

It is an amenable number.

63875953 is a deficient number, since it is larger than the sum of its proper divisors (3832919).

63875953 is a wasteful number, since it uses less digits than its factorization.

63875953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

The product of its digits is 680400, while the sum is 46.

The square root of 63875953 is about 7992.2433021024. The cubic root of 63875953 is about 399.7414016032.

The spelling of 63875953 in words is "sixty-three million, eight hundred seventy-five thousand, nine hundred fifty-three".