251126000623 has 4 divisors (see below), whose sum is σ = 251127370120. Its totient is φ = 251124631128.

The previous prime is 251126000617. The next prime is 251126000711. The reversal of 251126000623 is 326000621152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 251126000623 - 2²⁵ = 251092446191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251126000591 and 251126000600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251126000023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 357588 + ... + 793801.

It is an arithmetic number, because the mean of its divisors is an integer number (62781842530).

Almost surely, 2^251126000623 is an apocalyptic number.

251126000623 is a deficient number, since it is larger than the sum of its proper divisors (1369497).

251126000623 is a wasteful number, since it uses less digits than its factorization.

251126000623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369496.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 251126000623 its reverse (326000621152), we get a palindrome (577126621775).

The spelling of 251126000623 in words is "two hundred fifty-one billion, one hundred twenty-six million, six hundred twenty-three", and thus it is an aban number.