25342452135 has 384 divisors, whose sum is σ = 62707986432. Its totient is φ = 9123840000.

The previous prime is 25342452127. The next prime is 25342452241. The reversal of 25342452135 is 53125424352.

25342452135 is a `hidden beast` number, since 2 + 53 + 424 + 52 + 135 = 666.

It is not a de Polignac number, because 25342452135 - 2³ = 25342452127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25342452135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 63197935 + ... + 63198335.

It is an arithmetic number, because the mean of its divisors is an integer number (163302048).

Almost surely, 2^25342452135 is an apocalyptic number.

25342452135 is an abundant number, since it is smaller than the sum of its proper divisors (37365534297).

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

25342452135 is a wasteful number, since it uses less digits than its factorization.

25342452135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 524 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

Adding to 25342452135 its reverse (53125424352), we get a palindrome (78467876487).

The spelling of 25342452135 in words is "twenty-five billion, three hundred forty-two million, four hundred fifty-two thousand, one hundred thirty-five".