51056556105151 has 16 divisors (see below), whose sum is σ = 54764445759840. Its totient is φ = 47450959021440.

The previous prime is 51056556105109. The next prime is 51056556105173. The reversal of 51056556105151 is 15150165565015.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51056556105151 - 2¹⁵ = 51056556072383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51056556105851) 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, 5194881 + ... + 11362213.

It is an arithmetic number, because the mean of its divisors is an integer number (3422777859990).

Almost surely, 2^{51056556105151} is an apocalyptic number.

51056556105151 is a deficient number, since it is larger than the sum of its proper divisors (3707889654689).

51056556105151 is a wasteful number, since it uses less digits than its factorization.

51056556105151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6175626.

The product of its (nonzero) digits is 562500, while the sum is 46.

The spelling of 51056556105151 in words is "fifty-one trillion, fifty-six billion, five hundred fifty-six million, one hundred five thousand, one hundred fifty-one".