25252535432544 has 96 divisors (see below), whose sum is σ = 75758784627456. Its totient is φ = 7214897902080.

The previous prime is 25252535432483. The next prime is 25252535432587. The reversal of 25252535432544 is 44523453525252.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49168114 + ... + 49679054.

It is an arithmetic number, because the mean of its divisors is an integer number (789154006536).

Almost surely, 2^{25252535432544} is an apocalyptic number.

25252535432544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25252535432544 is an abundant number, since it is smaller than the sum of its proper divisors (50506249194912).

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

25252535432544 is a wasteful number, since it uses less digits than its factorization.

25252535432544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584508 (or 584500 counting only the distinct ones).

The product of its digits is 28800000, while the sum is 51.

Adding to 25252535432544 its reverse (44523453525252), we get a palindrome (69775988957796).

The spelling of 25252535432544 in words is "twenty-five trillion, two hundred fifty-two billion, five hundred thirty-five million, four hundred thirty-two thousand, five hundred forty-four".