51133445004 has 48 divisors (see below), whose sum is σ = 119547616608. Its totient is φ = 17010774528.

The previous prime is 51133444987. The next prime is 51133445063. The reversal of 51133445004 is 40054433115.

It is a super-2 number, since 2×51133445004² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18280134 + ... + 18282930.

It is an arithmetic number, because the mean of its divisors is an integer number (2490575346).

Almost surely, 2^51133445004 is an apocalyptic number.

It is an amenable number.

51133445004 is an abundant number, since it is smaller than the sum of its proper divisors (68414171604).

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

51133445004 is a wasteful number, since it uses less digits than its factorization.

51133445004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51133445004 its reverse (40054433115), we get a palindrome (91187878119).

The spelling of 51133445004 in words is "fifty-one billion, one hundred thirty-three million, four hundred forty-five thousand, four".