51095130420 has 48 divisors (see below), whose sum is σ = 143193274560. Its totient is φ = 13613281536.

The previous prime is 51095130377. The next prime is 51095130433. The reversal of 51095130420 is 2403159015.

It is a super-2 number, since 2×51095130420² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309402 + ... + 444881.

It is an arithmetic number, because the mean of its divisors is an integer number (2983193220).

Almost surely, 2^51095130420 is an apocalyptic number.

It is an amenable number.

51095130420 is an abundant number, since it is smaller than the sum of its proper divisors (92098144140).

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

51095130420 is a wasteful number, since it uses less digits than its factorization.

51095130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755424 (or 755422 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 51095130420 its reverse (2403159015), we get a palindrome (53498289435).

The spelling of 51095130420 in words is "fifty-one billion, ninety-five million, one hundred thirty thousand, four hundred twenty".