2025191399 has 48 divisors (see below), whose sum is σ = 2723159040. Its totient is φ = 1469793600.

The previous prime is 2025191353. The next prime is 2025191407. The reversal of 2025191399 is 9931915202.

It is a de Polignac number, because none of the positive numbers 2^k-2025191399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025191309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 980642 + ... + 982704.

It is an arithmetic number, because the mean of its divisors is an integer number (56732480).

Almost surely, 2^2025191399 is an apocalyptic number.

2025191399 is a deficient number, since it is larger than the sum of its proper divisors (697967641).

2025191399 is a wasteful number, since it uses less digits than its factorization.

2025191399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 2025191399 is about 45002.1266053061. The cubic root of 2025191399 is about 1265.1888564916.

The spelling of 2025191399 in words is "two billion, twenty-five million, one hundred ninety-one thousand, three hundred ninety-nine".