51455524640042 has 32 divisors (see below), whose sum is σ = 78164139715200. Its totient is φ = 25402082162688.

The previous prime is 51455524640041. The next prime is 51455524640119. The reversal of 51455524640042 is 24004642555415.

It is not an unprimeable number, because it can be changed into a prime (51455524640041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1154232509 + ... + 1154277087.

It is an arithmetic number, because the mean of its divisors is an integer number (2442629366100).

Almost surely, 2^{51455524640042} is an apocalyptic number.

51455524640042 is a deficient number, since it is larger than the sum of its proper divisors (26708615075158).

51455524640042 is a wasteful number, since it uses less digits than its factorization.

51455524640042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58670.

The product of its (nonzero) digits is 3840000, while the sum is 47.

The spelling of 51455524640042 in words is "fifty-one trillion, four hundred fifty-five billion, five hundred twenty-four million, six hundred forty thousand, forty-two".