25022425436 has 24 divisors (see below), whose sum is σ = 44104072320. Its totient is φ = 12421529792.

The previous prime is 25022425391. The next prime is 25022425447. The reversal of 25022425436 is 63452422052.

It is a super-2 number, since 2×25022425436² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25022425396 and 25022425405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344306 + ... + 410598.

It is an arithmetic number, because the mean of its divisors is an integer number (1837669680).

Almost surely, 2^25022425436 is an apocalyptic number.

It is an amenable number.

25022425436 is a deficient number, since it is larger than the sum of its proper divisors (19081646884).

25022425436 is a wasteful number, since it uses less digits than its factorization.

25022425436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66973 (or 66971 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 25022425436 its reverse (63452422052), we get a palindrome (88474847488).

The spelling of 25022425436 in words is "twenty-five billion, twenty-two million, four hundred twenty-five thousand, four hundred thirty-six".