25540121532052 has 12 divisors (see below), whose sum is σ = 44730158126080. Its totient is φ = 12760076353176.

The previous prime is 25540121532031. The next prime is 25540121532067. The reversal of 25540121532052 is 25023512104552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496097458 + ... + 2496107689.

Almost surely, 2^{25540121532052} is an apocalyptic number.

It is an amenable number.

25540121532052 is a deficient number, since it is larger than the sum of its proper divisors (19190036594028).

25540121532052 is a wasteful number, since it uses less digits than its factorization.

25540121532052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992206430 (or 4992206428 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 25540121532052 in words is "twenty-five trillion, five hundred forty billion, one hundred twenty-one million, five hundred thirty-two thousand, fifty-two".