51050051004 has 24 divisors (see below), whose sum is σ = 119200533760. Its totient is φ = 17004719664.

The previous prime is 51050050999. The next prime is 51050051021. The reversal of 51050051004 is 40015005015.

It is a super-2 number, since 2×51050051004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1477714 + ... + 1511865.

Almost surely, 2^51050051004 is an apocalyptic number.

It is an amenable number.

51050051004 is an abundant number, since it is smaller than the sum of its proper divisors (68150482756).

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

51050051004 is a wasteful number, since it uses less digits than its factorization.

51050051004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991009 (or 2991007 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

Adding to 51050051004 its reverse (40015005015), we get a palindrome (91065056019).

The spelling of 51050051004 in words is "fifty-one billion, fifty million, fifty-one thousand, four".