51551441521054 has 8 divisors (see below), whose sum is σ = 81397012928040. Its totient is φ = 24419103878376.

The previous prime is 51551441521043. The next prime is 51551441521091. The reversal of 51551441521054 is 45012514415515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51551441521054² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51551441521054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678308441029 + ... + 678308441104.

It is an arithmetic number, because the mean of its divisors is an integer number (10174626616005).

Almost surely, 2^{51551441521054} is an apocalyptic number.

51551441521054 is a deficient number, since it is larger than the sum of its proper divisors (29845571406986).

51551441521054 is a wasteful number, since it uses less digits than its factorization.

51551441521054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356616882154.

The product of its (nonzero) digits is 400000, while the sum is 43.

Adding to 51551441521054 its reverse (45012514415515), we get a palindrome (96563955936569).

The spelling of 51551441521054 in words is "fifty-one trillion, five hundred fifty-one billion, four hundred forty-one million, five hundred twenty-one thousand, fifty-four".