51622005 has 16 divisors (see below), whose sum is σ = 86186880. Its totient is φ = 26334528.

The previous prime is 51621971. The next prime is 51622007. The reversal of 51622005 is 50022615.

51622005 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 51622005 - 2¹⁰ = 51620981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51622007) 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, 74470 + ... + 75159.

It is an arithmetic number, because the mean of its divisors is an integer number (5386680).

Almost surely, 2^51622005 is an apocalyptic number.

It is an amenable number.

51622005 is a deficient number, since it is larger than the sum of its proper divisors (34564875).

51622005 is a wasteful number, since it uses less digits than its factorization.

51622005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149660.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51622005 is about 7184.8455098213. The cubic root of 51622005 is about 372.3445111751.

The spelling of 51622005 in words is "fifty-one million, six hundred twenty-two thousand, five".