51412252516 has 12 divisors (see below), whose sum is σ = 95263879788. Its totient is φ = 24194001152.

The previous prime is 51412252427. The next prime is 51412252519. The reversal of 51412252516 is 61525221415.

It can be written as a sum of positive squares in 2 ways, for example, as 37083204900 + 14329047616 = 192570^2 + 119704^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (51412252519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378031201 + ... + 378031336.

It is an arithmetic number, because the mean of its divisors is an integer number (7938656649).

Almost surely, 2^51412252516 is an apocalyptic number.

It is an amenable number.

51412252516 is a deficient number, since it is larger than the sum of its proper divisors (43851627272).

51412252516 is a wasteful number, since it uses less digits than its factorization.

51412252516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756062558 (or 756062556 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The spelling of 51412252516 in words is "fifty-one billion, four hundred twelve million, two hundred fifty-two thousand, five hundred sixteen".