25155541528 has 16 divisors (see below), whose sum is σ = 50794843680. Its totient is φ = 11610249888.

The previous prime is 25155541519. The next prime is 25155541553. The reversal of 25155541528 is 82514555152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120940000 + ... + 120940207.

It is an arithmetic number, because the mean of its divisors is an integer number (3174677730).

Almost surely, 2^25155541528 is an apocalyptic number.

It is an amenable number.

25155541528 is an abundant number, since it is smaller than the sum of its proper divisors (25639302152).

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

25155541528 is a wasteful number, since it uses less digits than its factorization.

25155541528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241880226 (or 241880222 counting only the distinct ones).

The product of its digits is 400000, while the sum is 43.

The spelling of 25155541528 in words is "twenty-five billion, one hundred fifty-five million, five hundred forty-one thousand, five hundred twenty-eight".