2051155633 has 2 divisors, whose sum is σ = 2051155634. Its totient is φ = 2051155632.

The previous prime is 2051155627. The next prime is 2051155637. The reversal of 2051155633 is 3365511502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1503267984 + 547887649 = 38772^2 + 23407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051155633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2051155595 and 2051155604.

It is not a weakly prime, because it can be changed into another prime (2051155637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025577816 + 1025577817.

It is an arithmetic number, because the mean of its divisors is an integer number (1025577817).

Almost surely, 2^2051155633 is an apocalyptic number.

It is an amenable number.

2051155633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051155633 is an equidigital number, since it uses as much as digits as its factorization.

2051155633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 2051155633 is about 45289.6857242353. The cubic root of 2051155633 is about 1270.5727536227.

The spelling of 2051155633 in words is "two billion, fifty-one million, one hundred fifty-five thousand, six hundred thirty-three".