25164451334 has 32 divisors (see below), whose sum is σ = 41710394880. Its totient is φ = 11291335200.

The previous prime is 25164451241. The next prime is 25164451343. The reversal of 25164451334 is 43315446152.

It is a super-2 number, since 2×25164451334² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630497 + ... + 669219.

It is an arithmetic number, because the mean of its divisors is an integer number (1303449840).

Almost surely, 2^25164451334 is an apocalyptic number.

25164451334 is a deficient number, since it is larger than the sum of its proper divisors (16545943546).

25164451334 is a wasteful number, since it uses less digits than its factorization.

25164451334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39116.

The product of its digits is 172800, while the sum is 38.

Adding to 25164451334 its reverse (43315446152), we get a palindrome (68479897486).

The spelling of 25164451334 in words is "twenty-five billion, one hundred sixty-four million, four hundred fifty-one thousand, three hundred thirty-four".