51111104224 has 12 divisors (see below), whose sum is σ = 100624986504. Its totient is φ = 25555552096.

The previous prime is 51111104189. The next prime is 51111104227. The reversal of 51111104224 is 42240111115.

It is a happy number.

It is a super-2 number, since 2×51111104224² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51111104195 and 51111104204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111104227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798610972 + ... + 798611035.

It is an arithmetic number, because the mean of its divisors is an integer number (8385415542).

Almost surely, 2^51111104224 is an apocalyptic number.

It is an amenable number.

51111104224 is a deficient number, since it is larger than the sum of its proper divisors (49513882280).

51111104224 is a wasteful number, since it uses less digits than its factorization.

51111104224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597222017 (or 1597222009 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 51111104224 its reverse (42240111115), we get a palindrome (93351215339).

The spelling of 51111104224 in words is "fifty-one billion, one hundred eleven million, one hundred four thousand, two hundred twenty-four".