25451442232 has 8 divisors (see below), whose sum is σ = 47721454200. Its totient is φ = 12725721112.

The previous prime is 25451442227. The next prime is 25451442241. The reversal of 25451442232 is 23224415452.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×25451442232³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590715132 + ... + 1590715147.

It is an arithmetic number, because the mean of its divisors is an integer number (5965181775).

Almost surely, 2^25451442232 is an apocalyptic number.

It is an amenable number.

25451442232 is a deficient number, since it is larger than the sum of its proper divisors (22270011968).

25451442232 is a wasteful number, since it uses less digits than its factorization.

25451442232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181430285 (or 3181430281 counting only the distinct ones).

The product of its digits is 76800, while the sum is 34.

Adding to 25451442232 its reverse (23224415452), we get a palindrome (48675857684).

The spelling of 25451442232 in words is "twenty-five billion, four hundred fifty-one million, four hundred forty-two thousand, two hundred thirty-two".