25123540050 has 144 divisors (see below), whose sum is σ = 77749880832. Its totient is φ = 5697216000.

The previous prime is 25123540033. The next prime is 25123540097. The reversal of 25123540050 is 5004532152.

It is a happy number.

25123540050 is a `hidden beast` number, since 2 + 51 + 23 + 540 + 0 + 50 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25123539996 and 25123540023.

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 71 ways as a sum of consecutive naturals, for example, 368650 + ... + 431450.

It is an arithmetic number, because the mean of its divisors is an integer number (539929728).

Almost surely, 2^25123540050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25123540050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38874940416).

25123540050 is an abundant number, since it is smaller than the sum of its proper divisors (52626340782).

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

25123540050 is a wasteful number, since it uses less digits than its factorization.

25123540050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62953 (or 62945 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 25123540050 in words is "twenty-five billion, one hundred twenty-three million, five hundred forty thousand, fifty".