2638473225 has 12 divisors (see below), whose sum is σ = 4362275856. Its totient is φ = 1407185680.

The previous prime is 2638473223. The next prime is 2638473239. The reversal of 2638473225 is 5223748362.

It is not a de Polignac number, because 2638473225 - 2¹ = 2638473223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2638473223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17589747 + ... + 17589896.

It is an arithmetic number, because the mean of its divisors is an integer number (363522988).

Almost surely, 2^2638473225 is an apocalyptic number.

2638473225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2638473225 is a deficient number, since it is larger than the sum of its proper divisors (1723802631).

2638473225 is a wasteful number, since it uses less digits than its factorization.

2638473225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35179656 (or 35179651 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 2638473225 is about 51366.0707568722. The cubic root of 2638473225 is about 1381.8181637805.

The spelling of 2638473225 in words is "two billion, six hundred thirty-eight million, four hundred seventy-three thousand, two hundred twenty-five".