51420165254625 has 32 divisors (see below), whose sum is σ = 85566481228800. Its totient is φ = 27423022032000.

The previous prime is 51420165254581. The next prime is 51420165254629. The reversal of 51420165254625 is 52645256102415.

51420165254625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51420165254625 - 2¹⁴ = 51420165238241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51420165254629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7041040 + ... + 12345710.

It is an arithmetic number, because the mean of its divisors is an integer number (2673952538400).

Almost surely, 2^{51420165254625} is an apocalyptic number.

It is an amenable number.

51420165254625 is a deficient number, since it is larger than the sum of its proper divisors (34146315974175).

51420165254625 is a wasteful number, since it uses less digits than its factorization.

51420165254625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330538 (or 5330528 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 48.

The spelling of 51420165254625 in words is "fifty-one trillion, four hundred twenty billion, one hundred sixty-five million, two hundred fifty-four thousand, six hundred twenty-five".