51124151504 has 40 divisors (see below), whose sum is σ = 107861772000. Its totient is φ = 23381640576.

The previous prime is 51124151503. The next prime is 51124151543. The reversal of 51124151504 is 40515142115.

It is a super-2 number, since 2×51124151504² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124151503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2890694 + ... + 2908325.

It is an arithmetic number, because the mean of its divisors is an integer number (2696544300).

Almost surely, 2^51124151504 is an apocalyptic number.

It is an amenable number.

51124151504 is an abundant number, since it is smaller than the sum of its proper divisors (56737620496).

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

51124151504 is a wasteful number, since it uses less digits than its factorization.

51124151504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799075 (or 5799069 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 51124151504 its reverse (40515142115), we get a palindrome (91639293619).

The spelling of 51124151504 in words is "fifty-one billion, one hundred twenty-four million, one hundred fifty-one thousand, five hundred four".