25025055257 has 8 divisors (see below), whose sum is σ = 26196152832. Its totient is φ = 23876697600.

The previous prime is 25025055221. The next prime is 25025055277. The reversal of 25025055257 is 75255052052.

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

It is a cyclic number.

It is not a de Polignac number, because 25025055257 - 2¹⁶ = 25024989721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25025055257.

It is not an unprimeable number, because it can be changed into a prime (25025055277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5682728 + ... + 5687129.

It is an arithmetic number, because the mean of its divisors is an integer number (3274519104).

Almost surely, 2^25025055257 is an apocalyptic number.

It is an amenable number.

25025055257 is a deficient number, since it is larger than the sum of its proper divisors (1171097575).

25025055257 is a wasteful number, since it uses less digits than its factorization.

25025055257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11369959.

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 25025055257 in words is "twenty-five billion, twenty-five million, fifty-five thousand, two hundred fifty-seven".