50978953 has 2 divisors, whose sum is σ = 50978954. Its totient is φ = 50978952.

The previous prime is 50978929. The next prime is 50979023. The reversal of 50978953 is 35987905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50808384 + 170569 = 7128^2 + 413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50978953 is a prime.

It is not a weakly prime, because it can be changed into another prime (50976953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25489476 + 25489477.

It is an arithmetic number, because the mean of its divisors is an integer number (25489477).

Almost surely, 2^50978953 is an apocalyptic number.

It is an amenable number.

50978953 is a deficient number, since it is larger than the sum of its proper divisors (1).

50978953 is an equidigital number, since it uses as much as digits as its factorization.

50978953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 50978953 is about 7139.9546917330. The cubic root of 50978953 is about 370.7919559719.

The spelling of 50978953 in words is "fifty million, nine hundred seventy-eight thousand, nine hundred fifty-three".