63925685 has 8 divisors (see below), whose sum is σ = 78158520. Its totient is φ = 50175424.

The previous prime is 63925679. The next prime is 63925691. The reversal of 63925685 is 58652936.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (63925679) and next prime (63925691).

It can be written as a sum of positive squares in 4 ways, for example, as 786769 + 63138916 = 887^2 + 7946^2 .

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 63925685 - 2¹² = 63921589 is a prime.

It is a Curzon 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, 120350 + ... + 120879.

It is an arithmetic number, because the mean of its divisors is an integer number (9769815).

Almost surely, 2^63925685 is an apocalyptic number.

It is an amenable number.

63925685 is a deficient number, since it is larger than the sum of its proper divisors (14232835).

63925685 is a wasteful number, since it uses less digits than its factorization.

63925685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241287.

The product of its digits is 388800, while the sum is 44.

The square root of 63925685 is about 7995.3539633965. The cubic root of 63925685 is about 399.8451171193.

The spelling of 63925685 in words is "sixty-three million, nine hundred twenty-five thousand, six hundred eighty-five".