53842387 has 2 divisors, whose sum is σ = 53842388. Its totient is φ = 53842386.

The previous prime is 53842343. The next prime is 53842423. The reversal of 53842387 is 78324835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53842387 - 2⁷ = 53842259 is a prime.

It is not a weakly prime, because it can be changed into another prime (53842787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26921193 + 26921194.

It is an arithmetic number, because the mean of its divisors is an integer number (26921194).

Almost surely, 2^53842387 is an apocalyptic number.

53842387 is a deficient number, since it is larger than the sum of its proper divisors (1).

53842387 is an equidigital number, since it uses as much as digits as its factorization.

53842387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 53842387 is about 7337.7371852636. The cubic root of 53842387 is about 377.6082159820.

The spelling of 53842387 in words is "fifty-three million, eight hundred forty-two thousand, three hundred eighty-seven".