25171171084 has 6 divisors (see below), whose sum is σ = 44049549404. Its totient is φ = 12585585540.

The previous prime is 25171171037. The next prime is 25171171087. The reversal of 25171171084 is 48017117152.

It is not an unprimeable number, because it can be changed into a prime (25171171087) 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 as a sum of consecutive naturals, namely, 3146396382 + ... + 3146396389.

Almost surely, 2^25171171084 is an apocalyptic number.

It is an amenable number.

25171171084 is a deficient number, since it is larger than the sum of its proper divisors (18878378320).

25171171084 is a wasteful number, since it uses less digits than its factorization.

25171171084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6292792775 (or 6292792773 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 37.

The spelling of 25171171084 in words is "twenty-five billion, one hundred seventy-one million, one hundred seventy-one thousand, eighty-four".