53697383 has 2 divisors, whose sum is σ = 53697384. Its totient is φ = 53697382.

The previous prime is 53697379. The next prime is 53697389. The reversal of 53697383 is 38379635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53697383 - 2² = 53697379 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53697389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26848691 + 26848692.

It is an arithmetic number, because the mean of its divisors is an integer number (26848692).

Almost surely, 2^53697383 is an apocalyptic number.

53697383 is a deficient number, since it is larger than the sum of its proper divisors (1).

53697383 is an equidigital number, since it uses as much as digits as its factorization.

53697383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 44.

The square root of 53697383 is about 7327.8498210594. The cubic root of 53697383 is about 377.2689298289.

The spelling of 53697383 in words is "fifty-three million, six hundred ninety-seven thousand, three hundred eighty-three".