51105215425624 has 16 divisors (see below), whose sum is σ = 100865556761400. Its totient is φ = 24207733622592.

The previous prime is 51105215425601. The next prime is 51105215425639. The reversal of 51105215425624 is 42652451250115.

It is a super-2 number, since 2×51105215425624² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168109261117 + ... + 168109261420.

Almost surely, 2^{51105215425624} is an apocalyptic number.

It is an amenable number.

51105215425624 is a deficient number, since it is larger than the sum of its proper divisors (49760341335776).

51105215425624 is a wasteful number, since it uses less digits than its factorization.

51105215425624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336218522562 (or 336218522558 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 43.

Adding to 51105215425624 its reverse (42652451250115), we get a palindrome (93757666675739).

The spelling of 51105215425624 in words is "fifty-one trillion, one hundred five billion, two hundred fifteen million, four hundred twenty-five thousand, six hundred twenty-four".