53165947 has 2 divisors, whose sum is σ = 53165948. Its totient is φ = 53165946.

The previous prime is 53165941. The next prime is 53165951. The reversal of 53165947 is 74956135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53165947 - 2³ = 53165939 is a prime.

It is not a weakly prime, because it can be changed into another prime (53165941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26582973 + 26582974.

It is an arithmetic number, because the mean of its divisors is an integer number (26582974).

Almost surely, 2^53165947 is an apocalyptic number.

53165947 is a deficient number, since it is larger than the sum of its proper divisors (1).

53165947 is an equidigital number, since it uses as much as digits as its factorization.

53165947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 53165947 is about 7291.4982685316. The cubic root of 53165947 is about 376.0202074359.

The spelling of 53165947 in words is "fifty-three million, one hundred sixty-five thousand, nine hundred forty-seven".