2257638875 has 8 divisors (see below), whose sum is σ = 2817533472. Its totient is φ = 1806111000.

The previous prime is 2257638871. The next prime is 2257638959. The reversal of 2257638875 is 5788367522.

It is a happy number.

2257638875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2257638875 - 2² = 2257638871 is a prime.

It is a super-2 number, since 2×2257638875² = 10193866579822531250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257638871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9030431 + ... + 9030680.

It is an arithmetic number, because the mean of its divisors is an integer number (352191684).

Almost surely, 2^2257638875 is an apocalyptic number.

2257638875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2257638875 is a deficient number, since it is larger than the sum of its proper divisors (559894597).

2257638875 is an equidigital number, since it uses as much as digits as its factorization.

2257638875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18061126 (or 18061116 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 53.

The square root of 2257638875 is about 47514.6174876743. The cubic root of 2257638875 is about 1311.8519491610.

The spelling of 2257638875 in words is "two billion, two hundred fifty-seven million, six hundred thirty-eight thousand, eight hundred seventy-five".