25451031143532 has 12 divisors (see below), whose sum is σ = 59385739334936. Its totient is φ = 8483677047840.

The previous prime is 25451031143477. The next prime is 25451031143539. The reversal of 25451031143532 is 23534113015452.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25451031143539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060459630969 + ... + 1060459630992.

Almost surely, 2^{25451031143532} is an apocalyptic number.

It is an amenable number.

25451031143532 is an abundant number, since it is smaller than the sum of its proper divisors (33934708191404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25451031143532 is a wasteful number, since it uses less digits than its factorization.

25451031143532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120919261968 (or 2120919261966 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 25451031143532 its reverse (23534113015452), we get a palindrome (48985144158984).

The spelling of 25451031143532 in words is "twenty-five trillion, four hundred fifty-one billion, thirty-one million, one hundred forty-three thousand, five hundred thirty-two".