25571332005 has 32 divisors (see below), whose sum is σ = 41357882880. Its totient is φ = 13490380800.

The previous prime is 25571331991. The next prime is 25571332021. The reversal of 25571332005 is 50023317552.

It is not a de Polignac number, because 25571332005 - 2¹² = 25571327909 is a prime.

It is a congruent 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, 1739476 + ... + 1754114.

It is an arithmetic number, because the mean of its divisors is an integer number (1292433840).

Almost surely, 2^25571332005 is an apocalyptic number.

It is an amenable number.

25571332005 is a deficient number, since it is larger than the sum of its proper divisors (15786550875).

25571332005 is a wasteful number, since it uses less digits than its factorization.

25571332005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15901.

The product of its (nonzero) digits is 31500, while the sum is 33.

Adding to 25571332005 its reverse (50023317552), we get a palindrome (75594649557).

The spelling of 25571332005 in words is "twenty-five billion, five hundred seventy-one million, three hundred thirty-two thousand, five".