63725823 has 36 divisors (see below), whose sum is σ = 108429048. Its totient is φ = 35955360.

The previous prime is 63725797. The next prime is 63725839. The reversal of 63725823 is 32852736.

63725823 is a `hidden beast` number, since 6 + 3 + 72 + 582 + 3 = 666.

It is not a de Polignac number, because 63725823 - 2⁸ = 63725567 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63725323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35733 + ... + 37473.

It is an arithmetic number, because the mean of its divisors is an integer number (3011918).

Almost surely, 2^63725823 is an apocalyptic number.

63725823 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

63725823 is a deficient number, since it is larger than the sum of its proper divisors (44703225).

63725823 is a wasteful number, since it uses less digits than its factorization.

63725823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1834 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 63725823 is about 7982.8455452927. The cubic root of 63725823 is about 399.4279802902.

The spelling of 63725823 in words is "sixty-three million, seven hundred twenty-five thousand, eight hundred twenty-three".