251325442201 has 8 divisors (see below), whose sum is σ = 255329438240. Its totient is φ = 247328883648.

The previous prime is 251325442189. The next prime is 251325442241. The reversal of 251325442201 is 102244523152.

It is a happy number.

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 251325442201 - 2⁷ = 251325442073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251325442241) 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 in 7 ways as a sum of consecutive naturals, for example, 1791231 + ... + 1926436.

It is an arithmetic number, because the mean of its divisors is an integer number (31916179780).

Almost surely, 2^251325442201 is an apocalyptic number.

It is an amenable number.

251325442201 is a deficient number, since it is larger than the sum of its proper divisors (4003996039).

251325442201 is a wasteful number, since it uses less digits than its factorization.

251325442201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718743.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 251325442201 its reverse (102244523152), we get a palindrome (353569965353).

The spelling of 251325442201 in words is "two hundred fifty-one billion, three hundred twenty-five million, four hundred forty-two thousand, two hundred one".