25015252051 has 2 divisors, whose sum is σ = 25015252052. Its totient is φ = 25015252050.

The previous prime is 25015252049. The next prime is 25015252061. The reversal of 25015252051 is 15025251052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25015252051 - 2¹ = 25015252049 is a prime.

Together with 25015252049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25015252061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12507626025 + 12507626026.

It is an arithmetic number, because the mean of its divisors is an integer number (12507626026).

Almost surely, 2^25015252051 is an apocalyptic number.

25015252051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25015252051 is an equidigital number, since it uses as much as digits as its factorization.

25015252051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5000, while the sum is 28.

Subtracting from 25015252051 its reverse (15025251052), we obtain a palindrome (9990000999).

It can be divided in two parts, 250152 and 52051, that added together give a palindrome (302203).

The spelling of 25015252051 in words is "twenty-five billion, fifteen million, two hundred fifty-two thousand, fifty-one".