2638003625 has 8 divisors (see below), whose sum is σ = 3292228680. Its totient is φ = 2110402800.

The previous prime is 2638003619. The next prime is 2638003631. The reversal of 2638003625 is 5263008362.

It is an interprime number because it is at equal distance from previous prime (2638003619) and next prime (2638003631).

It can be written as a sum of positive squares in 4 ways, for example, as 56957209 + 2581046416 = 7547^2 + 50804^2 .

It is not a de Polignac number, because 2638003625 - 2²⁰ = 2636955049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10551890 + ... + 10552139.

It is an arithmetic number, because the mean of its divisors is an integer number (411528585).

Almost surely, 2^2638003625 is an apocalyptic number.

2638003625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2638003625 is a deficient number, since it is larger than the sum of its proper divisors (654225055).

2638003625 is an equidigital number, since it uses as much as digits as its factorization.

2638003625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21104044 (or 21104034 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2638003625 is about 51361.4994426759. The cubic root of 2638003625 is about 1381.7361794591.

The spelling of 2638003625 in words is "two billion, six hundred thirty-eight million, three thousand, six hundred twenty-five".