51124215044 has 24 divisors (see below), whose sum is σ = 102307869888. Its totient is φ = 21897640800.

The previous prime is 51124215041. The next prime is 51124215067. The reversal of 51124215044 is 44051242115.

It is a happy number.

It is a super-2 number, since 2×51124215044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51124214998 and 51124215016.

It is not an unprimeable number, because it can be changed into a prime (51124215041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481607 + ... + 578094.

It is an arithmetic number, because the mean of its divisors is an integer number (4262827912).

Almost surely, 2^51124215044 is an apocalyptic number.

It is an amenable number.

51124215044 is an abundant number, since it is smaller than the sum of its proper divisors (51183654844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51124215044 is a wasteful number, since it uses less digits than its factorization.

51124215044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061435 (or 1061433 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 51124215044 its reverse (44051242115), we get a palindrome (95175457159).

The spelling of 51124215044 in words is "fifty-one billion, one hundred twenty-four million, two hundred fifteen thousand, forty-four".