51514103351421 has 12 divisors (see below), whose sum is σ = 78786275714172. Its totient is φ = 32322574651776.

The previous prime is 51514103351407. The next prime is 51514103351423. The reversal of 51514103351421 is 12415330141515.

51514103351421 is a `hidden beast` number, since 5 + 1 + 5 + 14 + 103 + 3 + 514 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30250154000196 + 21263949351225 = 5500014^2 + 4611285^2 .

It is not a de Polignac number, because 51514103351421 - 2¹⁵ = 51514103318653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51514103351423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168346742826 + ... + 168346743131.

It is an arithmetic number, because the mean of its divisors is an integer number (6565522976181).

Almost surely, 2^{51514103351421} is an apocalyptic number.

51514103351421 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51514103351421 is a deficient number, since it is larger than the sum of its proper divisors (27272172362751).

51514103351421 is a wasteful number, since it uses less digits than its factorization.

51514103351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336693485980 (or 336693485977 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 51514103351421 its reverse (12415330141515), we get a palindrome (63929433492936).

The spelling of 51514103351421 in words is "fifty-one trillion, five hundred fourteen billion, one hundred three million, three hundred fifty-one thousand, four hundred twenty-one".