51125405461453 has 4 divisors (see below), whose sum is σ = 51125562793120. Its totient is φ = 51125248129788.

The previous prime is 51125405461451. The next prime is 51125405461499. The reversal of 51125405461453 is 35416450452115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51125405461453 - 2¹ = 51125405461451 is a prime.

It is a super-2 number, since 2×51125405461453² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51125405461451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78177393 + ... + 78828646.

It is an arithmetic number, because the mean of its divisors is an integer number (12781390698280).

Almost surely, 2^{51125405461453} is an apocalyptic number.

It is an amenable number.

51125405461453 is a deficient number, since it is larger than the sum of its proper divisors (157331667).

51125405461453 is a wasteful number, since it uses less digits than its factorization.

51125405461453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157331666.

The product of its (nonzero) digits is 1440000, while the sum is 46.

The spelling of 51125405461453 in words is "fifty-one trillion, one hundred twenty-five billion, four hundred five million, four hundred sixty-one thousand, four hundred fifty-three".