51512141252 has 96 divisors (see below), whose sum is σ = 113975455104. Its totient is φ = 20008396800.

The previous prime is 51512141209. The next prime is 51512141297. The reversal of 51512141252 is 25214121515.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549743 + ... + 636585.

It is an arithmetic number, because the mean of its divisors is an integer number (1187244324).

Almost surely, 2^51512141252 is an apocalyptic number.

51512141252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51512141252 is an abundant number, since it is smaller than the sum of its proper divisors (62463313852).

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

51512141252 is a wasteful number, since it uses less digits than its factorization.

51512141252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86949 (or 86947 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

Adding to 51512141252 its reverse (25214121515), we get a palindrome (76726262767).

The spelling of 51512141252 in words is "fifty-one billion, five hundred twelve million, one hundred forty-one thousand, two hundred fifty-two".