51113941 has 2 divisors, whose sum is σ = 51113942. Its totient is φ = 51113940.

The previous prime is 51113939. The next prime is 51113963. The reversal of 51113941 is 14931115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44275716 + 6838225 = 6654^2 + 2615^2 .

It is a cyclic number.

It is not a de Polignac number, because 51113941 - 2¹ = 51113939 is a prime.

It is a super-2 number, since 2×51113941² = 5225269929102962, which contains 22 as substring.

Together with 51113939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51113911) 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 as a sum of consecutive naturals, namely, 25556970 + 25556971.

It is an arithmetic number, because the mean of its divisors is an integer number (25556971).

Almost surely, 2^51113941 is an apocalyptic number.

It is an amenable number.

51113941 is a deficient number, since it is larger than the sum of its proper divisors (1).

51113941 is an equidigital number, since it uses as much as digits as its factorization.

51113941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 25.

The square root of 51113941 is about 7149.4014434776. The cubic root of 51113941 is about 371.1189428834.

The spelling of 51113941 in words is "fifty-one million, one hundred thirteen thousand, nine hundred forty-one".