25004930061 has 8 divisors (see below), whose sum is σ = 33352986304. Its totient is φ = 16663413600.

The previous prime is 25004930059. The next prime is 25004930117. The reversal of 25004930061 is 16003940052.

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

It is not a de Polignac number, because 25004930061 - 2¹ = 25004930059 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25004930761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626016 + ... + 1641321.

It is an arithmetic number, because the mean of its divisors is an integer number (4169123288).

Almost surely, 2^25004930061 is an apocalyptic number.

It is an amenable number.

25004930061 is a deficient number, since it is larger than the sum of its proper divisors (8348056243).

25004930061 is a wasteful number, since it uses less digits than its factorization.

25004930061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269891.

The product of its (nonzero) digits is 6480, while the sum is 30.

Subtracting from 25004930061 its reverse (16003940052), we obtain a palindrome (9000990009).

The spelling of 25004930061 in words is "twenty-five billion, four million, nine hundred thirty thousand, sixty-one".