52977893 has 2 divisors, whose sum is σ = 52977894. Its totient is φ = 52977892.

The previous prime is 52977889. The next prime is 52977907. The reversal of 52977893 is 39877925.

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., 50098084 + 2879809 = 7078^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 52977893 - 2² = 52977889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52977803) 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, 26488946 + 26488947.

It is an arithmetic number, because the mean of its divisors is an integer number (26488947).

Almost surely, 2^52977893 is an apocalyptic number.

It is an amenable number.

52977893 is a deficient number, since it is larger than the sum of its proper divisors (1).

52977893 is an equidigital number, since it uses as much as digits as its factorization.

52977893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 52977893 is about 7278.5914159266. The cubic root of 52977893 is about 375.5763416123.

The spelling of 52977893 in words is "fifty-two million, nine hundred seventy-seven thousand, eight hundred ninety-three".