63825819 has 8 divisors (see below), whose sum is σ = 85166592. Its totient is φ = 42517800.

The previous prime is 63825791. The next prime is 63825823. The reversal of 63825819 is 91852836.

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

It is not a de Polignac number, because 63825819 - 2⁷ = 63825691 is a prime.

It is a super-2 number, since 2×63825819² = 8147470342041522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63825829) 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, 3207 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (10645824).

Almost surely, 2^63825819 is an apocalyptic number.

63825819 is a deficient number, since it is larger than the sum of its proper divisors (21340773).

63825819 is a wasteful number, since it uses less digits than its factorization.

63825819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377.

The product of its digits is 103680, while the sum is 42.

The square root of 63825819 is about 7989.1062704160. The cubic root of 63825819 is about 399.6367932186.

The spelling of 63825819 in words is "sixty-three million, eight hundred twenty-five thousand, eight hundred nineteen".