2051563331 has 2 divisors, whose sum is σ = 2051563332. Its totient is φ = 2051563330.

The previous prime is 2051563321. The next prime is 2051563337. The reversal of 2051563331 is 1333651502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2051563331 - 2¹⁴ = 2051546947 is a prime.

It is a super-2 number, since 2×2051563331² = 8417824202207631122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2051563294 and 2051563303.

It is not a weakly prime, because it can be changed into another prime (2051563337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025781665 + 1025781666.

It is an arithmetic number, because the mean of its divisors is an integer number (1025781666).

Almost surely, 2^2051563331 is an apocalyptic number.

2051563331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051563331 is an equidigital number, since it uses as much as digits as its factorization.

2051563331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 2051563331 is about 45294.1865033472. The cubic root of 2051563331 is about 1270.6569298541.

The spelling of 2051563331 in words is "two billion, fifty-one million, five hundred sixty-three thousand, three hundred thirty-one".