51223230253 has 24 divisors (see below), whose sum is σ = 58552562880. Its totient is φ = 44666519040.

The previous prime is 51223230217. The next prime is 51223230263. The reversal of 51223230253 is 35203232215.

It is a happy number.

It is not a de Polignac number, because 51223230253 - 2²⁹ = 50686359341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51223230203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1110888 + ... + 1156078.

It is an arithmetic number, because the mean of its divisors is an integer number (2439690120).

Almost surely, 2^51223230253 is an apocalyptic number.

It is an amenable number.

51223230253 is a deficient number, since it is larger than the sum of its proper divisors (7329332627).

51223230253 is a wasteful number, since it uses less digits than its factorization.

51223230253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45589 (or 45576 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 51223230253 its reverse (35203232215), we get a palindrome (86426462468).

The spelling of 51223230253 in words is "fifty-one billion, two hundred twenty-three million, two hundred thirty thousand, two hundred fifty-three".