25500280030 has 8 divisors (see below), whose sum is σ = 45900504072. Its totient is φ = 10200112008.

The previous prime is 25500279953. The next prime is 25500280033. The reversal of 25500280030 is 3008200552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25500279977 and 25500280004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500280033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275013992 + ... + 1275014011.

It is an arithmetic number, because the mean of its divisors is an integer number (5737563009).

Almost surely, 2^25500280030 is an apocalyptic number.

25500280030 is a deficient number, since it is larger than the sum of its proper divisors (20400224042).

25500280030 is a wasteful number, since it uses less digits than its factorization.

25500280030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550028010.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 25500280030 its reverse (3008200552), we get a palindrome (28508480582).

The spelling of 25500280030 in words is "twenty-five billion, five hundred million, two hundred eighty thousand, thirty".