25555030050 has 48 divisors (see below), whose sum is σ = 69137976672. Its totient is φ = 6195158400.

The previous prime is 25555030031. The next prime is 25555030051. The reversal of 25555030050 is 5003055552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25555030051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7742299 + ... + 7745598.

It is an arithmetic number, because the mean of its divisors is an integer number (1440374514).

Almost surely, 2^25555030050 is an apocalyptic number.

25555030050 is an abundant number, since it is smaller than the sum of its proper divisors (43582946622).

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

25555030050 is a wasteful number, since it uses less digits than its factorization.

25555030050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15487923 (or 15487918 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 30.

The spelling of 25555030050 in words is "twenty-five billion, five hundred fifty-five million, thirty thousand, fifty".