53665427 has 2 divisors, whose sum is σ = 53665428. Its totient is φ = 53665426.

The previous prime is 53665373. The next prime is 53665483. The reversal of 53665427 is 72456635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53665427 - 2¹² = 53661331 is a prime.

It is not a weakly prime, because it can be changed into another prime (53665127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26832713 + 26832714.

It is an arithmetic number, because the mean of its divisors is an integer number (26832714).

Almost surely, 2^53665427 is an apocalyptic number.

53665427 is a deficient number, since it is larger than the sum of its proper divisors (1).

53665427 is an equidigital number, since it uses as much as digits as its factorization.

53665427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 38.

The square root of 53665427 is about 7325.6690479437. The cubic root of 53665427 is about 377.1940757882.

The spelling of 53665427 in words is "fifty-three million, six hundred sixty-five thousand, four hundred twenty-seven".