251350012223 has 8 divisors (see below), whose sum is σ = 268675305696. Its totient is φ = 234557804800.

The previous prime is 251350012219. The next prime is 251350012231. The reversal of 251350012223 is 322210053152.

It is a happy number.

251350012223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 251350012223 - 2² = 251350012219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251350012192 and 251350012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251350012253) 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, 133270538 + ... + 133272423.

It is an arithmetic number, because the mean of its divisors is an integer number (33584413212).

Almost surely, 2^251350012223 is an apocalyptic number.

251350012223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

251350012223 is a deficient number, since it is larger than the sum of its proper divisors (17325293473).

251350012223 is a wasteful number, since it uses less digits than its factorization.

251350012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266543025.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 251350012223 its reverse (322210053152), we get a palindrome (573560065375).

The spelling of 251350012223 in words is "two hundred fifty-one billion, three hundred fifty million, twelve thousand, two hundred twenty-three".