2500000399 has 16 divisors (see below), whose sum is σ = 2853355680. Its totient is φ = 2169907200.

The previous prime is 2500000397. The next prime is 2500000427. The reversal of 2500000399 is 9930000052.

2500000399 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 2500000399 - 2¹ = 2500000397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500000397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260712 + ... + 270130.

It is an arithmetic number, because the mean of its divisors is an integer number (178334730).

Almost surely, 2^2500000399 is an apocalyptic number.

2500000399 is a deficient number, since it is larger than the sum of its proper divisors (353355281).

2500000399 is a wasteful number, since it uses less digits than its factorization.

2500000399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 2500000399 is about 50000.0039899998. The cubic root of 2500000399 is about 1357.2088805010.

The spelling of 2500000399 in words is "two billion, five hundred million, three hundred ninety-nine", and thus it is an aban number.