2681487625 has 8 divisors (see below), whose sum is σ = 3346496712. Its totient is φ = 2145190000.

The previous prime is 2681487607. The next prime is 2681487647. The reversal of 2681487625 is 5267841862.

It can be written as a sum of positive squares in 4 ways, for example, as 194769936 + 2486717689 = 13956^2 + 49867^2 .

It is not a de Polignac number, because 2681487625 - 2¹³ = 2681479433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10725826 + ... + 10726075.

It is an arithmetic number, because the mean of its divisors is an integer number (418312089).

Almost surely, 2^2681487625 is an apocalyptic number.

2681487625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2681487625 is a deficient number, since it is larger than the sum of its proper divisors (665009087).

2681487625 is an equidigital number, since it uses as much as digits as its factorization.

2681487625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21451916 (or 21451906 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 2681487625 is about 51783.0824208061. The cubic root of 2681487625 is about 1389.2868734730.

The spelling of 2681487625 in words is "two billion, six hundred eighty-one million, four hundred eighty-seven thousand, six hundred twenty-five".