25059869538 has 32 divisors (see below), whose sum is σ = 57553770240. Its totient is φ = 7194220560.

The previous prime is 25059869521. The next prime is 25059869543. The reversal of 25059869538 is 83596895052.

It is a super-2 number, since 2×25059869538² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9990720 + ... + 9993227.

It is an arithmetic number, because the mean of its divisors is an integer number (1798555320).

Almost surely, 2^25059869538 is an apocalyptic number.

25059869538 is an abundant number, since it is smaller than the sum of its proper divisors (32493900702).

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

25059869538 is a wasteful number, since it uses less digits than its factorization.

25059869538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19983982.

The product of its (nonzero) digits is 23328000, while the sum is 60.

The spelling of 25059869538 in words is "twenty-five billion, fifty-nine million, eight hundred sixty-nine thousand, five hundred thirty-eight".