51054224420 has 48 divisors (see below), whose sum is σ = 108247062000. Its totient is φ = 20225064960.

The previous prime is 51054224399. The next prime is 51054224423. The reversal of 51054224420 is 2442245015.

It can be written as a sum of positive squares in 8 ways, for example, as 428324416 + 50625900004 = 20696^2 + 225002^2 .

It is a super-2 number, since 2×51054224420² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51054224423) 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, 6642980 + ... + 6650660.

It is an arithmetic number, because the mean of its divisors is an integer number (2255147125).

Almost surely, 2^51054224420 is an apocalyptic number.

It is an amenable number.

51054224420 is an abundant number, since it is smaller than the sum of its proper divisors (57192837580).

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

51054224420 is a wasteful number, since it uses less digits than its factorization.

51054224420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848 (or 10846 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 51054224420 its reverse (2442245015), we get a palindrome (53496469435).

The spelling of 51054224420 in words is "fifty-one billion, fifty-four million, two hundred twenty-four thousand, four hundred twenty".