51022957 has 2 divisors, whose sum is σ = 51022958. Its totient is φ = 51022956.

The previous prime is 51022949. The next prime is 51022991. The reversal of 51022957 is 75922015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42432196 + 8590761 = 6514^2 + 2931^2 .

It is a cyclic number.

It is not a de Polignac number, because 51022957 - 2³ = 51022949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51022927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511478 + 25511479.

It is an arithmetic number, because the mean of its divisors is an integer number (25511479).

Almost surely, 2^51022957 is an apocalyptic number.

It is an amenable number.

51022957 is a deficient number, since it is larger than the sum of its proper divisors (1).

51022957 is an equidigital number, since it uses as much as digits as its factorization.

51022957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51022957 is about 7143.0355592003. The cubic root of 51022957 is about 370.8986119929.

The spelling of 51022957 in words is "fifty-one million, twenty-two thousand, nine hundred fifty-seven".