20795057 has 2 divisors, whose sum is σ = 20795058. Its totient is φ = 20795056.

The previous prime is 20795041. The next prime is 20795087. The reversal of 20795057 is 75059702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17986081 + 2808976 = 4241^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 20795057 - 2⁴ = 20795041 is a prime.

It is not a weakly prime, because it can be changed into another prime (20795087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397528 + 10397529.

It is an arithmetic number, because the mean of its divisors is an integer number (10397529).

Almost surely, 2^20795057 is an apocalyptic number.

It is an amenable number.

20795057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20795057 is an equidigital number, since it uses as much as digits as its factorization.

20795057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 20795057 is about 4560.1597559735. The cubic root of 20795057 is about 274.9919865434.

The spelling of 20795057 in words is "twenty million, seven hundred ninety-five thousand, fifty-seven".