53398619 has 2 divisors, whose sum is σ = 53398620. Its totient is φ = 53398618.

The previous prime is 53398589. The next prime is 53398621. The reversal of 53398619 is 91689335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53398619 - 2¹⁶ = 53333083 is a prime.

It is a super-3 number, since 3×53398619³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 53398621, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53398619.

It is not a weakly prime, because it can be changed into another prime (53398519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26699309 + 26699310.

It is an arithmetic number, because the mean of its divisors is an integer number (26699310).

Almost surely, 2^53398619 is an apocalyptic number.

53398619 is a deficient number, since it is larger than the sum of its proper divisors (1).

53398619 is an equidigital number, since it uses as much as digits as its factorization.

53398619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 53398619 is about 7307.4358703994. The cubic root of 53398619 is about 376.5679393359.

The spelling of 53398619 in words is "fifty-three million, three hundred ninety-eight thousand, six hundred nineteen".