51223042592 has 18 divisors (see below), whose sum is σ = 100847885733. Its totient is φ = 25610881152.

The previous prime is 51223042547. The next prime is 51223042597. The reversal of 51223042592 is 29524032215.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 27147175696 + 24075866896 = 164764^2 + 155164^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=160036.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51223042597) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1260284 + ... + 1300292.

Almost surely, 2^51223042592 is an apocalyptic number.

It is an amenable number.

51223042592 is a deficient number, since it is larger than the sum of its proper divisors (49624843141).

51223042592 is an frugal number, since it uses more digits than its factorization.

51223042592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80028 (or 40011 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 51223042592 in words is "fifty-one billion, two hundred twenty-three million, forty-two thousand, five hundred ninety-two".