25040064123 has 24 divisors (see below), whose sum is σ = 37889841600. Its totient is φ = 15913707264.

The previous prime is 25040064061. The next prime is 25040064149. The reversal of 25040064123 is 32146004052.

25040064123 is a `hidden beast` number, since 250 + 400 + 6 + 4 + 1 + 2 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-25040064123 is a prime.

It is a super-2 number, since 2×25040064123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25040062123) 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 23 ways as a sum of consecutive naturals, for example, 586590 + ... + 627827.

It is an arithmetic number, because the mean of its divisors is an integer number (1578743400).

Almost surely, 2^25040064123 is an apocalyptic number.

25040064123 is a deficient number, since it is larger than the sum of its proper divisors (12849777477).

25040064123 is a wasteful number, since it uses less digits than its factorization.

25040064123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214531 (or 1214528 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 25040064123 its reverse (32146004052), we get a palindrome (57186068175).

The spelling of 25040064123 in words is "twenty-five billion, forty million, sixty-four thousand, one hundred twenty-three".