2638023425 has 12 divisors (see below), whose sum is σ = 3383948220. Its totient is φ = 2037645120.

The previous prime is 2638023413. The next prime is 2638023439. The reversal of 2638023425 is 5243208362.

It can be written as a sum of positive squares in 6 ways, for example, as 315169009 + 2322854416 = 17753^2 + 48196^2 .

It is not a de Polignac number, because 2638023425 - 2²⁴ = 2621246209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1818602 + ... + 1820051.

It is an arithmetic number, because the mean of its divisors is an integer number (281995685).

Almost surely, 2^2638023425 is an apocalyptic number.

2638023425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2638023425 is a deficient number, since it is larger than the sum of its proper divisors (745924795).

2638023425 is a wasteful number, since it uses less digits than its factorization.

2638023425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638692 (or 3638687 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 2638023425 is about 51361.6921936963. The cubic root of 2638023425 is about 1381.7396364050.

The spelling of 2638023425 in words is "two billion, six hundred thirty-eight million, twenty-three thousand, four hundred twenty-five".