51773381 has 16 divisors (see below), whose sum is σ = 61871040. Its totient is φ = 42766080.

The previous prime is 51773369. The next prime is 51773383. The reversal of 51773381 is 18337715.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51773381 is a prime.

It is a super-2 number, since 2×51773381² = 5360965960342322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51773383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2^51773381 is an apocalyptic number.

It is an amenable number.

51773381 is a deficient number, since it is larger than the sum of its proper divisors (10097659).

51773381 is a wasteful number, since it uses less digits than its factorization.

51773381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9604.

The product of its digits is 17640, while the sum is 35.

The square root of 51773381 is about 7195.3721932920. The cubic root of 51773381 is about 372.7081094667.

It can be divided in two parts, 5177 and 3381, that added together give a palindrome (8558).

The spelling of 51773381 in words is "fifty-one million, seven hundred seventy-three thousand, three hundred eighty-one".