51542331542051 has 16 divisors (see below), whose sum is σ = 61973113218240. Its totient is φ = 41936693137920.

The previous prime is 51542331542017. The next prime is 51542331542057. The reversal of 51542331542051 is 15024513324515.

It is not a de Polignac number, because 51542331542051 - 2³⁴ = 51525151672867 is a prime.

It is a super-2 number, since 2×51542331542051² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (51542331542057) 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, 2426881346 + ... + 2426902583.

It is an arithmetic number, because the mean of its divisors is an integer number (3873319576140).

Almost surely, 2^{51542331542051} is an apocalyptic number.

51542331542051 is a deficient number, since it is larger than the sum of its proper divisors (10430781676189).

51542331542051 is a wasteful number, since it uses less digits than its factorization.

51542331542051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853784014.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 51542331542051 its reverse (15024513324515), we get a palindrome (66566844866566).

The spelling of 51542331542051 in words is "fifty-one trillion, five hundred forty-two billion, three hundred thirty-one million, five hundred forty-two thousand, fifty-one".