25025025278 has 8 divisors (see below), whose sum is σ = 40950041400. Its totient is φ = 11375011480.

The previous prime is 25025025217. The next prime is 25025025283. The reversal of 25025025278 is 87252052052.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568750553 + ... + 568750596.

It is an arithmetic number, because the mean of its divisors is an integer number (5118755175).

Almost surely, 2^25025025278 is an apocalyptic number.

25025025278 is a deficient number, since it is larger than the sum of its proper divisors (15925016122).

25025025278 is a wasteful number, since it uses less digits than its factorization.

25025025278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137501162.

The product of its (nonzero) digits is 112000, while the sum is 38.

The spelling of 25025025278 in words is "twenty-five billion, twenty-five million, twenty-five thousand, two hundred seventy-eight".