25187116153 has 8 divisors (see below), whose sum is σ = 25917519240. Its totient is φ = 24459327360.

The previous prime is 25187116147. The next prime is 25187116159. The reversal of 25187116153 is 35161178152.

It is an interprime number because it is at equal distance from previous prime (25187116147) and next prime (25187116159).

It can be written as a sum of positive squares in 4 ways, for example, as 6567967849 + 18619148304 = 81043^2 + 136452^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25187116153 - 2⁵ = 25187116121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25187116159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634018 + ... + 672571.

It is an arithmetic number, because the mean of its divisors is an integer number (3239689905).

Almost surely, 2^25187116153 is an apocalyptic number.

It is an amenable number.

25187116153 is a deficient number, since it is larger than the sum of its proper divisors (730403087).

25187116153 is a wasteful number, since it uses less digits than its factorization.

25187116153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307147.

The product of its digits is 50400, while the sum is 40.

The spelling of 25187116153 in words is "twenty-five billion, one hundred eighty-seven million, one hundred sixteen thousand, one hundred fifty-three".