25417500050 has 24 divisors (see below), whose sum is σ = 47483019300. Its totient is φ = 10122598080.

The previous prime is 25417500019. The next prime is 25417500127. The reversal of 25417500050 is 5000571452.

It can be written as a sum of positive squares in 6 ways, for example, as 6253804561 + 19163695489 = 79081^2 + 138433^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25417499986 and 25417500022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098485 + ... + 1121384.

Almost surely, 2^25417500050 is an apocalyptic number.

25417500050 is a deficient number, since it is larger than the sum of its proper divisors (22065519250).

25417500050 is a wasteful number, since it uses less digits than its factorization.

25417500050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220110 (or 2220105 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The spelling of 25417500050 in words is "twenty-five billion, four hundred seventeen million, five hundred thousand, fifty".