51419531 has 2 divisors, whose sum is σ = 51419532. Its totient is φ = 51419530.

The previous prime is 51419507. The next prime is 51419539. The reversal of 51419531 is 13591415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51419531 - 2¹⁴ = 51403147 is a prime.

It is a super-2 number, since 2×51419531² = 5287936336519922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51419494 and 51419503.

It is not a weakly prime, because it can be changed into another prime (51419539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25709765 + 25709766.

It is an arithmetic number, because the mean of its divisors is an integer number (25709766).

Almost surely, 2^51419531 is an apocalyptic number.

51419531 is a deficient number, since it is larger than the sum of its proper divisors (1).

51419531 is an equidigital number, since it uses as much as digits as its factorization.

51419531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 29.

The square root of 51419531 is about 7170.7413145365. The cubic root of 51419531 is about 371.8570648884.

The spelling of 51419531 in words is "fifty-one million, four hundred nineteen thousand, five hundred thirty-one".