53440267 has 2 divisors, whose sum is σ = 53440268. Its totient is φ = 53440266.

The previous prime is 53440237. The next prime is 53440337. The reversal of 53440267 is 76204435.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53440267 is a prime.

It is not a weakly prime, because it can be changed into another prime (53440207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26720133 + 26720134.

It is an arithmetic number, because the mean of its divisors is an integer number (26720134).

Almost surely, 2^53440267 is an apocalyptic number.

53440267 is a deficient number, since it is larger than the sum of its proper divisors (1).

53440267 is an equidigital number, since it uses as much as digits as its factorization.

53440267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 53440267 is about 7310.2850149635. The cubic root of 53440267 is about 376.6658146882.

The spelling of 53440267 in words is "fifty-three million, four hundred forty thousand, two hundred sixty-seven".