51355316051554 has 8 divisors (see below), whose sum is σ = 77033401841088. Its totient is φ = 25677515437860.

The previous prime is 51355316051551. The next prime is 51355316051597. The reversal of 51355316051554 is 45515061355315.

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

It is a junction number, because it is equal to n+sod(n) for n = 51355316051498 and 51355316051507.

It is not an unprimeable number, because it can be changed into a prime (51355316051551) 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, 70843182 + ... + 71564425.

It is an arithmetic number, because the mean of its divisors is an integer number (9629175230136).

Almost surely, 2^{51355316051554} is an apocalyptic number.

51355316051554 is a deficient number, since it is larger than the sum of its proper divisors (25678085789534).

51355316051554 is a wasteful number, since it uses less digits than its factorization.

51355316051554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142587920.

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 51355316051554 in words is "fifty-one trillion, three hundred fifty-five billion, three hundred sixteen million, fifty-one thousand, five hundred fifty-four".