53236399 has 2 divisors, whose sum is σ = 53236400. Its totient is φ = 53236398.

The previous prime is 53236397. The next prime is 53236411. The reversal of 53236399 is 99363235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53236399 - 2¹ = 53236397 is a prime.

It is a super-2 number, since 2×53236399² = 5668228356974402, which contains 22 as substring.

Together with 53236397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53236397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26618199 + 26618200.

It is an arithmetic number, because the mean of its divisors is an integer number (26618200).

Almost surely, 2^53236399 is an apocalyptic number.

53236399 is a deficient number, since it is larger than the sum of its proper divisors (1).

53236399 is an equidigital number, since it uses as much as digits as its factorization.

53236399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 40.

The square root of 53236399 is about 7296.3277749838. The cubic root of 53236399 is about 376.1862265027.

It can be divided in two parts, 53236 and 399, that added together give a palindrome (53635).

The spelling of 53236399 in words is "fifty-three million, two hundred thirty-six thousand, three hundred ninety-nine".