25540354323 has 16 divisors (see below), whose sum is σ = 41277340800. Its totient is φ = 15479002440.

The previous prime is 25540354321. The next prime is 25540354327. The reversal of 25540354323 is 32345304552.

25540354323 is a `hidden beast` number, since 2 + 55 + 40 + 3 + 543 + 23 = 666.

It is not a de Polignac number, because 25540354323 - 2¹ = 25540354321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25540354321) 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 in 15 ways as a sum of consecutive naturals, for example, 42996933 + ... + 42997526.

It is an arithmetic number, because the mean of its divisors is an integer number (2579833800).

Almost surely, 2^25540354323 is an apocalyptic number.

25540354323 is a deficient number, since it is larger than the sum of its proper divisors (15736986477).

25540354323 is a wasteful number, since it uses less digits than its factorization.

25540354323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85994479 (or 85994473 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 25540354323 its reverse (32345304552), we get a palindrome (57885658875).

The spelling of 25540354323 in words is "twenty-five billion, five hundred forty million, three hundred fifty-four thousand, three hundred twenty-three".