25502672050 has 24 divisors (see below), whose sum is σ = 47478312756. Its totient is φ = 10191747840.

The previous prime is 25502672029. The next prime is 25502672057. The reversal of 25502672050 is 5027620552.

It can be written as a sum of positive squares in 6 ways, for example, as 6314050521 + 19188621529 = 79461^2 + 138523^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25502671997 and 25502672015.

It is not an unprimeable number, because it can be changed into a prime (25502672057) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 177627 + ... + 287326.

Almost surely, 2^25502672050 is an apocalyptic number.

25502672050 is a deficient number, since it is larger than the sum of its proper divisors (21975640706).

25502672050 is a wasteful number, since it uses less digits than its factorization.

25502672050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466062 (or 466057 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 25502672050 in words is "twenty-five billion, five hundred two million, six hundred seventy-two thousand, fifty".