52431857 has 2 divisors, whose sum is σ = 52431858. Its totient is φ = 52431856.

The previous prime is 52431853. The next prime is 52431871. The reversal of 52431857 is 75813425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52070656 + 361201 = 7216^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 52431857 - 2² = 52431853 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52431853) 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, 26215928 + 26215929.

It is an arithmetic number, because the mean of its divisors is an integer number (26215929).

Almost surely, 2^52431857 is an apocalyptic number.

It is an amenable number.

52431857 is a deficient number, since it is larger than the sum of its proper divisors (1).

52431857 is an equidigital number, since it uses as much as digits as its factorization.

52431857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 52431857 is about 7240.9845325066. The cubic root of 52431857 is about 374.2815447006.

The spelling of 52431857 in words is "fifty-two million, four hundred thirty-one thousand, eight hundred fifty-seven".