25852825851 has 64 divisors (see below), whose sum is σ = 36959639040. Its totient is φ = 16051875840.

The previous prime is 25852825849. The next prime is 25852825853. The reversal of 25852825851 is 15852825852.

It is an interprime number because it is at equal distance from previous prime (25852825849) and next prime (25852825853).

It is not a de Polignac number, because 25852825851 - 2¹ = 25852825849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25852825794 and 25852825803.

It is not an unprimeable number, because it can be changed into a prime (25852825853) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73237291 + ... + 73237643.

It is an arithmetic number, because the mean of its divisors is an integer number (577494360).

Almost surely, 2^25852825851 is an apocalyptic number.

25852825851 is a deficient number, since it is larger than the sum of its proper divisors (11106813189).

25852825851 is a wasteful number, since it uses less digits than its factorization.

25852825851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716.

The product of its digits is 2560000, while the sum is 51.

Subtracting from 25852825851 its reverse (15852825852), we obtain a palindrome (9999999999).

The spelling of 25852825851 in words is "twenty-five billion, eight hundred fifty-two million, eight hundred twenty-five thousand, eight hundred fifty-one".