25613435050 has 48 divisors (see below), whose sum is σ = 57649613760. Its totient is φ = 8265173760.

The previous prime is 25613435047. The next prime is 25613435059. The reversal of 25613435050 is 5053431652.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 25613434997 and 25613435015.

It is not an unprimeable number, because it can be changed into a prime (25613435059) 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 23 ways as a sum of consecutive naturals, for example, 2146440 + ... + 2158339.

It is an arithmetic number, because the mean of its divisors is an integer number (1201033620).

Almost surely, 2^25613435050 is an apocalyptic number.

25613435050 is an abundant number, since it is smaller than the sum of its proper divisors (32036178710).

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

25613435050 is a wasteful number, since it uses less digits than its factorization.

25613435050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304815 (or 4304810 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 25613435050 in words is "twenty-five billion, six hundred thirteen million, four hundred thirty-five thousand, fifty".