25278055275 has 48 divisors (see below), whose sum is σ = 46043981568. Its totient is φ = 12134640000.

The previous prime is 25278055241. The next prime is 25278055279. The reversal of 25278055275 is 57255087252.

It is a de Polignac number, because none of the positive numbers 2^k-25278055275 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25278055279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68359 + ... + 235008.

It is an arithmetic number, because the mean of its divisors is an integer number (959249616).

Almost surely, 2^25278055275 is an apocalyptic number.

25278055275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25278055275 is a deficient number, since it is larger than the sum of its proper divisors (20765926293).

25278055275 is a wasteful number, since it uses less digits than its factorization.

25278055275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303492 (or 303487 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 48.

The spelling of 25278055275 in words is "twenty-five billion, two hundred seventy-eight million, fifty-five thousand, two hundred seventy-five".