51134015020 has 48 divisors (see below), whose sum is σ = 119867666688. Its totient is φ = 18161760960.

The previous prime is 51134015003. The next prime is 51134015021. The reversal of 51134015020 is 2051043115.

It is a happy number.

It is a super-2 number, since 2×51134015020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 51134014982 and 51134015000.

It is not an unprimeable number, because it can be changed into a prime (51134015021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2693184 + ... + 2712103.

It is an arithmetic number, because the mean of its divisors is an integer number (2497243056).

Almost surely, 2^51134015020 is an apocalyptic number.

It is an amenable number.

51134015020 is an abundant number, since it is smaller than the sum of its proper divisors (68733651668).

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

51134015020 is a wasteful number, since it uses less digits than its factorization.

51134015020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405350 (or 5405348 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 51134015020 its reverse (2051043115), we get a palindrome (53185058135).

The spelling of 51134015020 in words is "fifty-one billion, one hundred thirty-four million, fifteen thousand, twenty".