25130555278 has 8 divisors (see below), whose sum is σ = 37696569768. Its totient is φ = 12565032024.

The previous prime is 25130555273. The next prime is 25130555311. The reversal of 25130555278 is 87255503152.

25130555278 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×25130555278² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130555273) 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, 58800 + ... + 231772.

It is an arithmetic number, because the mean of its divisors is an integer number (4712071221).

Almost surely, 2^25130555278 is an apocalyptic number.

25130555278 is a deficient number, since it is larger than the sum of its proper divisors (12566014490).

25130555278 is a wasteful number, since it uses less digits than its factorization.

25130555278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245618.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 25130555278 in words is "twenty-five billion, one hundred thirty million, five hundred fifty-five thousand, two hundred seventy-eight".