2051378033 has 2 divisors, whose sum is σ = 2051378034. Its totient is φ = 2051378032.

The previous prime is 2051377987. The next prime is 2051378047. The reversal of 2051378033 is 3308731502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2051365264 + 12769 = 45292^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051378033 - 2¹² = 2051373937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2051378093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025689016 + 1025689017.

It is an arithmetic number, because the mean of its divisors is an integer number (1025689017).

Almost surely, 2^2051378033 is an apocalyptic number.

It is an amenable number.

2051378033 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051378033 is an equidigital number, since it uses as much as digits as its factorization.

2051378033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 2051378033 is about 45292.1409628646. The cubic root of 2051378033 is about 1270.6186732925.

The spelling of 2051378033 in words is "two billion, fifty-one million, three hundred seventy-eight thousand, thirty-three".