53231771 has 2 divisors, whose sum is σ = 53231772. Its totient is φ = 53231770.

The previous prime is 53231767. The next prime is 53231861. The reversal of 53231771 is 17713235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53231771 - 2² = 53231767 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (53234771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26615885 + 26615886.

It is an arithmetic number, because the mean of its divisors is an integer number (26615886).

Almost surely, 2^53231771 is an apocalyptic number.

53231771 is a deficient number, since it is larger than the sum of its proper divisors (1).

53231771 is an equidigital number, since it uses as much as digits as its factorization.

53231771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 29.

The square root of 53231771 is about 7296.0106222510. The cubic root of 53231771 is about 376.1753251875.

The spelling of 53231771 in words is "fifty-three million, two hundred thirty-one thousand, seven hundred seventy-one".