51660411 has 16 divisors (see below), whose sum is σ = 79098240. Its totient is φ = 29661120.

The previous prime is 51660409. The next prime is 51660431. The reversal of 51660411 is 11406615.

51660411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51660411 - 2¹ = 51660409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51660431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40570 + ... + 41823.

It is an arithmetic number, because the mean of its divisors is an integer number (4943640).

Almost surely, 2^51660411 is an apocalyptic number.

51660411 is a deficient number, since it is larger than the sum of its proper divisors (27437829).

51660411 is a wasteful number, since it uses less digits than its factorization.

51660411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82426.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 51660411 is about 7187.5177217173. The cubic root of 51660411 is about 372.4368278681.

It can be divided in two parts, 516604 and 11, that added together give a palindrome (516615).

The spelling of 51660411 in words is "fifty-one million, six hundred sixty thousand, four hundred eleven".