53765519 has 2 divisors, whose sum is σ = 53765520. Its totient is φ = 53765518.

The previous prime is 53765447. The next prime is 53765521. The reversal of 53765519 is 91556735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53765519 - 2⁸ = 53765263 is a prime.

It is a super-2 number, since 2×53765519² = 5781462066678722, which contains 22 as substring.

Together with 53765521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53765549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26882759 + 26882760.

It is an arithmetic number, because the mean of its divisors is an integer number (26882760).

Almost surely, 2^53765519 is an apocalyptic number.

53765519 is a deficient number, since it is larger than the sum of its proper divisors (1).

53765519 is an equidigital number, since it uses as much as digits as its factorization.

53765519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141750, while the sum is 41.

The square root of 53765519 is about 7332.4974599382. The cubic root of 53765519 is about 377.4284331387.

The spelling of 53765519 in words is "fifty-three million, seven hundred sixty-five thousand, five hundred nineteen".