51425430366403 has 4 divisors (see below), whose sum is σ = 51431504005480. Its totient is φ = 51419356727328.

The previous prime is 51425430366361. The next prime is 51425430366413. The reversal of 51425430366403 is 30466303452415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51425430366403 - 2⁹ = 51425430365891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51425430366413) 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, 3036806838 + ... + 3036823771.

It is an arithmetic number, because the mean of its divisors is an integer number (12857876001370).

Almost surely, 2^{51425430366403} is an apocalyptic number.

51425430366403 is a deficient number, since it is larger than the sum of its proper divisors (6073639077).

51425430366403 is an equidigital number, since it uses as much as digits as its factorization.

51425430366403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073639076.

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 51425430366403 in words is "fifty-one trillion, four hundred twenty-five billion, four hundred thirty million, three hundred sixty-six thousand, four hundred three".