51505150111 has 8 divisors (see below), whose sum is σ = 53283759120. Its totient is φ = 49726712448.

The previous prime is 51505150033. The next prime is 51505150133. The reversal of 51505150111 is 11105150515.

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

It is a cyclic number.

It is not a de Polignac number, because 51505150111 - 2⁹ = 51505149599 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 (51505156111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996375 + ... + 1046791.

It is an arithmetic number, because the mean of its divisors is an integer number (6660469890).

Almost surely, 2^51505150111 is an apocalyptic number.

51505150111 is a deficient number, since it is larger than the sum of its proper divisors (1778609009).

51505150111 is a wasteful number, since it uses less digits than its factorization.

51505150111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85673.

The product of its (nonzero) digits is 625, while the sum is 25.

The spelling of 51505150111 in words is "fifty-one billion, five hundred five million, one hundred fifty thousand, one hundred eleven".