25778451235 has 8 divisors (see below), whose sum is σ = 31223246256. Its totient is φ = 20430024480.

The previous prime is 25778451203. The next prime is 25778451241. The reversal of 25778451235 is 53215487752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25778451235 - 2⁵ = 25778451203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24091476 + ... + 24092545.

It is an arithmetic number, because the mean of its divisors is an integer number (3902905782).

Almost surely, 2^25778451235 is an apocalyptic number.

25778451235 is a deficient number, since it is larger than the sum of its proper divisors (5444795021).

25778451235 is a wasteful number, since it uses less digits than its factorization.

25778451235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48184133.

The product of its digits is 2352000, while the sum is 49.

The spelling of 25778451235 in words is "twenty-five billion, seven hundred seventy-eight million, four hundred fifty-one thousand, two hundred thirty-five".