25071055387 has 4 divisors (see below), whose sum is σ = 28652634736. Its totient is φ = 21489476040.

The previous prime is 25071055301. The next prime is 25071055423. The reversal of 25071055387 is 78355017052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25071055387 - 2¹¹ = 25071053339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25071055187) 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, 1790789664 + ... + 1790789677.

It is an arithmetic number, because the mean of its divisors is an integer number (7163158684).

Almost surely, 2^25071055387 is an apocalyptic number.

25071055387 is a deficient number, since it is larger than the sum of its proper divisors (3581579349).

25071055387 is an equidigital number, since it uses as much as digits as its factorization.

25071055387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581579348.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 25071055387 in words is "twenty-five billion, seventy-one million, fifty-five thousand, three hundred eighty-seven".