51808053 has 16 divisors (see below), whose sum is σ = 76962816. Its totient is φ = 30729840.

The previous prime is 51808039. The next prime is 51808063. The reversal of 51808053 is 35080815.

It is a happy number.

51808053 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 51808053 - 2²⁵ = 18253621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51808053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51808013) 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, 15151 + ... + 18252.

It is an arithmetic number, because the mean of its divisors is an integer number (4810176).

Almost surely, 2^51808053 is an apocalyptic number.

It is an amenable number.

51808053 is a deficient number, since it is larger than the sum of its proper divisors (25154763).

51808053 is a wasteful number, since it uses less digits than its factorization.

51808053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33464.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 51808053 is about 7197.7811164275. The cubic root of 51808053 is about 372.7912902551.

Adding to 51808053 its reverse (35080815), we get a palindrome (86888868).

The spelling of 51808053 in words is "fifty-one million, eight hundred eight thousand, fifty-three".