25030055505 has 32 divisors (see below), whose sum is σ = 49289958144. Its totient is φ = 10562132736.

The previous prime is 25030055483. The next prime is 25030055513. The reversal of 25030055505 is 50555003052.

It is not a de Polignac number, because 25030055505 - 2⁹ = 25030054993 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9167154 + ... + 9169883.

It is an arithmetic number, because the mean of its divisors is an integer number (1540311192).

Almost surely, 2^25030055505 is an apocalyptic number.

It is an amenable number.

25030055505 is a deficient number, since it is larger than the sum of its proper divisors (24259902639).

25030055505 is a wasteful number, since it uses less digits than its factorization.

25030055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18337065.

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

Adding to 25030055505 its reverse (50555003052), we get a palindrome (75585058557).

The spelling of 25030055505 in words is "twenty-five billion, thirty million, fifty-five thousand, five hundred five".