25055500030540 has 96 divisors (see below), whose sum is σ = 61122058187904. Its totient is φ = 8449205852160.

The previous prime is 25055500030453. The next prime is 25055500030543. The reversal of 25055500030540 is 4503000555052.

It is a junction number, because it is equal to n+sod(n) for n = 25055500030496 and 25055500030505.

It is not an unprimeable number, because it can be changed into a prime (25055500030543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202788862 + ... + 202912378.

It is an arithmetic number, because the mean of its divisors is an integer number (636688106124).

Almost surely, 2^{25055500030540} is an apocalyptic number.

25055500030540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25055500030540 is an abundant number, since it is smaller than the sum of its proper divisors (36066558157364).

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

25055500030540 is a wasteful number, since it uses less digits than its factorization.

25055500030540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147347 (or 147345 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

Adding to 25055500030540 its reverse (4503000555052), we get a palindrome (29558500585592).

The spelling of 25055500030540 in words is "twenty-five trillion, fifty-five billion, five hundred million, thirty thousand, five hundred forty".