52778963 has 2 divisors, whose sum is σ = 52778964. Its totient is φ = 52778962.

The previous prime is 52778959. The next prime is 52778977. The reversal of 52778963 is 36987725.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52778963 - 2² = 52778959 is a prime.

It is not a weakly prime, because it can be changed into another prime (52778923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26389481 + 26389482.

It is an arithmetic number, because the mean of its divisors is an integer number (26389482).

Almost surely, 2^52778963 is an apocalyptic number.

52778963 is a deficient number, since it is larger than the sum of its proper divisors (1).

52778963 is an equidigital number, since it uses as much as digits as its factorization.

52778963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 52778963 is about 7264.9131446976. The cubic root of 52778963 is about 375.1056603003.

The spelling of 52778963 in words is "fifty-two million, seven hundred seventy-eight thousand, nine hundred sixty-three".