25251708089 has 8 divisors (see below), whose sum is σ = 25942099008. Its totient is φ = 24561733680.

The previous prime is 25251708029. The next prime is 25251708103. The reversal of 25251708089 is 98080715252.

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

It is not a de Polignac number, because 25251708089 - 2¹⁶ = 25251642553 is a prime.

It is a super-2 number, since 2×25251708089² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25251708029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20804 + ... + 225690.

It is an arithmetic number, because the mean of its divisors is an integer number (3242762376).

Almost surely, 2^25251708089 is an apocalyptic number.

It is an amenable number.

25251708089 is a deficient number, since it is larger than the sum of its proper divisors (690390919).

25251708089 is a wasteful number, since it uses less digits than its factorization.

25251708089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208255.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 25251708089 in words is "twenty-five billion, two hundred fifty-one million, seven hundred eight thousand, eighty-nine".