51382669 has 16 divisors (see below), whose sum is σ = 58535680. Its totient is φ = 44712000.

The previous prime is 51382663. The next prime is 51382673. The reversal of 51382669 is 96628315.

It is a cyclic number.

It is not a de Polignac number, because 51382669 - 2¹⁵ = 51349901 is a prime.

It is a super-2 number, since 2×51382669² = 5280357347127122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51382663) 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, 68044 + ... + 68794.

It is an arithmetic number, because the mean of its divisors is an integer number (3658480).

Almost surely, 2^51382669 is an apocalyptic number.

It is an amenable number.

51382669 is a deficient number, since it is larger than the sum of its proper divisors (7153011).

51382669 is a wasteful number, since it uses less digits than its factorization.

51382669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its digits is 77760, while the sum is 40.

The square root of 51382669 is about 7168.1705476363. The cubic root of 51382669 is about 371.7681837978.

The spelling of 51382669 in words is "fifty-one million, three hundred eighty-two thousand, six hundred sixty-nine".