51125155446451 has 8 divisors (see below), whose sum is σ = 51146200838304. Its totient is φ = 51104110881600.

The previous prime is 51125155446403. The next prime is 51125155446473. The reversal of 51125155446451 is 15464455152115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51125155446451 - 2⁹ = 51125155445939 is a prime.

It is a super-2 number, since 2×51125155446451² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51125155446395 and 51125155446404.

It is not an unprimeable number, because it can be changed into a prime (51125155446151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144019626 + ... + 144374176.

It is an arithmetic number, because the mean of its divisors is an integer number (6393275104788).

Almost surely, 2^{51125155446451} is an apocalyptic number.

51125155446451 is a deficient number, since it is larger than the sum of its proper divisors (21045391853).

51125155446451 is a wasteful number, since it uses less digits than its factorization.

51125155446451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413501.

The product of its digits is 2400000, while the sum is 49.

The spelling of 51125155446451 in words is "fifty-one trillion, one hundred twenty-five billion, one hundred fifty-five million, four hundred forty-six thousand, four hundred fifty-one".