51050121252 has 48 divisors (see below), whose sum is σ = 129721173120. Its totient is φ = 15531234048.

The previous prime is 51050121229. The next prime is 51050121281. The reversal of 51050121252 is 25212105015.

It is a super-2 number, since 2×51050121252² (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, 1824568 + ... + 1852335.

It is an arithmetic number, because the mean of its divisors is an integer number (2702524440).

Almost surely, 2^51050121252 is an apocalyptic number.

51050121252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51050121252 is an abundant number, since it is smaller than the sum of its proper divisors (78671051868).

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

51050121252 is a wasteful number, since it uses less digits than its factorization.

51050121252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677012 (or 3677010 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 51050121252 its reverse (25212105015), we get a palindrome (76262226267).

The spelling of 51050121252 in words is "fifty-one billion, fifty million, one hundred twenty-one thousand, two hundred fifty-two".