25153440523 has 2 divisors, whose sum is σ = 25153440524. Its totient is φ = 25153440522.

The previous prime is 25153440479. The next prime is 25153440563. The reversal of 25153440523 is 32504435152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25153440523 - 2¹⁷ = 25153309451 is a prime.

It is not a weakly prime, because it can be changed into another prime (25153440563) 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, 12576720261 + 12576720262.

It is an arithmetic number, because the mean of its divisors is an integer number (12576720262).

Almost surely, 2^25153440523 is an apocalyptic number.

25153440523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25153440523 is an equidigital number, since it uses as much as digits as its factorization.

25153440523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 25153440523 its reverse (32504435152), we get a palindrome (57657875675).

The spelling of 25153440523 in words is "twenty-five billion, one hundred fifty-three million, four hundred forty thousand, five hundred twenty-three".