4025663 has 4 divisors (see below), whose sum is σ = 4237560. Its totient is φ = 3813768.

The previous prime is 4025657. The next prime is 4025683. The reversal of 4025663 is 3665204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4025663 - 2⁶ = 4025599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105920 + ... + 105957.

It is an arithmetic number, because the mean of its divisors is an integer number (1059390).

Almost surely, 2^4025663 is an apocalyptic number.

4025663 is a deficient number, since it is larger than the sum of its proper divisors (211897).

4025663 is a wasteful number, since it uses less digits than its factorization.

4025663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211896.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 4025663 is about 2006.4054924167. The cubic root of 4025663 is about 159.0788607128.

The spelling of 4025663 in words is "four million, twenty-five thousand, six hundred sixty-three".