25255280500525 has 48 divisors (see below), whose sum is σ = 33806190618000. Its totient is φ = 18644882780160.

The previous prime is 25255280500487. The next prime is 25255280500573. The reversal of 25255280500525 is 52500508255252.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 10702718793001 + 14552561707524 = 3271501^2 + 3814782^2 .

It is not a de Polignac number, because 25255280500525 - 2¹³ = 25255280492333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34529311 + ... + 35253139.

It is an arithmetic number, because the mean of its divisors is an integer number (704295637875).

Almost surely, 2^{25255280500525} is an apocalyptic number.

25255280500525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25255280500525 is a deficient number, since it is larger than the sum of its proper divisors (8550910117475).

25255280500525 is a wasteful number, since it uses less digits than its factorization.

25255280500525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725458 (or 725453 counting only the distinct ones).

The product of its (nonzero) digits is 2000000, while the sum is 46.

Adding to 25255280500525 its reverse (52500508255252), we get a palindrome (77755788755777).

The spelling of 25255280500525 in words is "twenty-five trillion, two hundred fifty-five billion, two hundred eighty million, five hundred thousand, five hundred twenty-five".