25050234540 has 24 divisors (see below), whose sum is σ = 70140656880. Its totient is φ = 6680062528.

The previous prime is 25050234529. The next prime is 25050234541. The reversal of 25050234540 is 4543205052.

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

It is a junction number, because it is equal to n+sod(n) for n = 25050234498 and 25050234507.

It is not an unprimeable number, because it can be changed into a prime (25050234541) 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, 208751895 + ... + 208752014.

It is an arithmetic number, because the mean of its divisors is an integer number (2922527370).

Almost surely, 2^25050234540 is an apocalyptic number.

25050234540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25050234540 is an abundant number, since it is smaller than the sum of its proper divisors (45090422340).

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

25050234540 is a wasteful number, since it uses less digits than its factorization.

25050234540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417503921 (or 417503919 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 25050234540 its reverse (4543205052), we get a palindrome (29593439592).

The spelling of 25050234540 in words is "twenty-five billion, fifty million, two hundred thirty-four thousand, five hundred forty".