53148971 has 2 divisors, whose sum is σ = 53148972. Its totient is φ = 53148970.

The previous prime is 53148959. The next prime is 53149007. The reversal of 53148971 is 17984135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53148971 - 2²² = 48954667 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53148071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26574485 + 26574486.

It is an arithmetic number, because the mean of its divisors is an integer number (26574486).

Almost surely, 2^53148971 is an apocalyptic number.

53148971 is a deficient number, since it is larger than the sum of its proper divisors (1).

53148971 is an equidigital number, since it uses as much as digits as its factorization.

53148971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 53148971 is about 7290.3340801365. The cubic root of 53148971 is about 375.9801818248.

The spelling of 53148971 in words is "fifty-three million, one hundred forty-eight thousand, nine hundred seventy-one".