53719493 has 2 divisors, whose sum is σ = 53719494. Its totient is φ = 53719492.

The previous prime is 53719489. The next prime is 53719531. The reversal of 53719493 is 39491735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50098084 + 3621409 = 7078^2 + 1903^2 .

It is a cyclic number.

It is not a de Polignac number, because 53719493 - 2² = 53719489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53719493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53719433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26859746 + 26859747.

It is an arithmetic number, because the mean of its divisors is an integer number (26859747).

Almost surely, 2^53719493 is an apocalyptic number.

It is an amenable number.

53719493 is a deficient number, since it is larger than the sum of its proper divisors (1).

53719493 is an equidigital number, since it uses as much as digits as its factorization.

53719493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The square root of 53719493 is about 7329.3582938754. The cubic root of 53719493 is about 377.3207031244.

The spelling of 53719493 in words is "fifty-three million, seven hundred nineteen thousand, four hundred ninety-three".