2025878399 has 4 divisors (see below), whose sum is σ = 2030557536. Its totient is φ = 2021199264.

The previous prime is 2025878383. The next prime is 2025878417. The reversal of 2025878399 is 9938785202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2025878399 - 2⁴ = 2025878383 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 2025878399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025878329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2338919 + ... + 2339784.

It is an arithmetic number, because the mean of its divisors is an integer number (507639384).

Almost surely, 2^2025878399 is an apocalyptic number.

2025878399 is a deficient number, since it is larger than the sum of its proper divisors (4679137).

2025878399 is an equidigital number, since it uses as much as digits as its factorization.

2025878399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679136.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 2025878399 is about 45009.7589307030. The cubic root of 2025878399 is about 1265.3319024739.

The spelling of 2025878399 in words is "two billion, twenty-five million, eight hundred seventy-eight thousand, three hundred ninety-nine".