51222307623 has 16 divisors (see below), whose sum is σ = 72319373280. Its totient is φ = 32137030656.

The previous prime is 51222307583. The next prime is 51222307627. The reversal of 51222307623 is 32670322215.

It is not a de Polignac number, because 51222307623 - 2¹⁶ = 51222242087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222307627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823161 + ... + 883197.

It is an arithmetic number, because the mean of its divisors is an integer number (4519960830).

Almost surely, 2^51222307623 is an apocalyptic number.

51222307623 is a deficient number, since it is larger than the sum of its proper divisors (21097065657).

51222307623 is a wasteful number, since it uses less digits than its factorization.

51222307623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76786.

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 51222307623 its reverse (32670322215), we get a palindrome (83892629838).

The spelling of 51222307623 in words is "fifty-one billion, two hundred twenty-two million, three hundred seven thousand, six hundred twenty-three".