53731019 has 2 divisors, whose sum is σ = 53731020. Its totient is φ = 53731018.

The previous prime is 53731003. The next prime is 53731021. The reversal of 53731019 is 91013735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53731019 - 2⁴ = 53731003 is a prime.

It is a super-2 number, since 2×53731019² = 5774044805556722, which contains 22 as substring.

Together with 53731021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53730982 and 53731000.

It is not a weakly prime, because it can be changed into another prime (53731079) 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, 26865509 + 26865510.

It is an arithmetic number, because the mean of its divisors is an integer number (26865510).

Almost surely, 2^53731019 is an apocalyptic number.

53731019 is a deficient number, since it is larger than the sum of its proper divisors (1).

53731019 is an equidigital number, since it uses as much as digits as its factorization.

53731019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 53731019 is about 7330.1445415490. The cubic root of 53731019 is about 377.3476870439.

The spelling of 53731019 in words is "fifty-three million, seven hundred thirty-one thousand, nineteen".