2500850387 has 20 divisors (see below), whose sum is σ = 2996442576. Its totient is φ = 2085577200.

The previous prime is 2500850381. The next prime is 2500850413. The reversal of 2500850387 is 7830580052.

It is not a de Polignac number, because 2500850387 - 2⁴ = 2500850371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2500850387.

It is not an unprimeable number, because it can be changed into a prime (2500850381) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74762 + ... + 102912.

Almost surely, 2^2500850387 is an apocalyptic number.

2500850387 is a deficient number, since it is larger than the sum of its proper divisors (495592189).

2500850387 is an frugal number, since it uses more digits than its factorization.

2500850387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28216 (or 28195 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2500850387 is about 50008.5031469649. The cubic root of 2500850387 is about 1357.3626778825.

The spelling of 2500850387 in words is "two billion, five hundred million, eight hundred fifty thousand, three hundred eighty-seven".