25055030500 has 24 divisors (see below), whose sum is σ = 54720187704. Its totient is φ = 10022012000.

The previous prime is 25055030411. The next prime is 25055030503. The reversal of 25055030500 is 503055052.

It can be written as a sum of positive squares in 4 ways, for example, as 8115487396 + 16939543104 = 90086^2 + 130152^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (25055030503) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25054531 + ... + 25055530.

It is an arithmetic number, because the mean of its divisors is an integer number (2280007821).

Almost surely, 2^25055030500 is an apocalyptic number.

25055030500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25055030500 is an abundant number, since it is smaller than the sum of its proper divisors (29665157204).

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

25055030500 is a wasteful number, since it uses less digits than its factorization.

25055030500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50110080 (or 50110068 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

Adding to 25055030500 its reverse (503055052), we get a palindrome (25558085552).

The spelling of 25055030500 in words is "twenty-five billion, fifty-five million, thirty thousand, five hundred".