251010052005 has 8 divisors (see below), whose sum is σ = 401616083232. Its totient is φ = 133872027728.

The previous prime is 251010051961. The next prime is 251010052037. The reversal of 251010052005 is 500250010152.

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 251010052005 - 2⁸ = 251010051749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8367001719 + ... + 8367001748.

It is an arithmetic number, because the mean of its divisors is an integer number (50202010404).

Almost surely, 2^251010052005 is an apocalyptic number.

It is an amenable number.

251010052005 is a deficient number, since it is larger than the sum of its proper divisors (150606031227).

251010052005 is a wasteful number, since it uses less digits than its factorization.

251010052005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16734003475.

The product of its (nonzero) digits is 500, while the sum is 21.

Adding to 251010052005 its reverse (500250010152), we get a palindrome (751260062157).

The spelling of 251010052005 in words is "two hundred fifty-one billion, ten million, fifty-two thousand, five".