25778003025 has 12 divisors (see below), whose sum is σ = 42619631792. Its totient is φ = 13748268240.

The previous prime is 25778003011. The next prime is 25778003033. The reversal of 25778003025 is 52030087752.

It is not a de Polignac number, because 25778003025 - 2²³ = 25769614417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171853279 + ... + 171853428.

Almost surely, 2^25778003025 is an apocalyptic number.

25778003025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25778003025 is a deficient number, since it is larger than the sum of its proper divisors (16841628767).

25778003025 is a wasteful number, since it uses less digits than its factorization.

25778003025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343706720 (or 343706715 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 25778003025 in words is "twenty-five billion, seven hundred seventy-eight million, three thousand, twenty-five".