2661550051 has 2 divisors, whose sum is σ = 2661550052. Its totient is φ = 2661550050.

The previous prime is 2661550033. The next prime is 2661550057. The reversal of 2661550051 is 1500551662.

2661550051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2661550051 - 2⁵ = 2661550019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2661549995 and 2661550022.

It is not a weakly prime, because it can be changed into another prime (2661550057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330775025 + 1330775026.

It is an arithmetic number, because the mean of its divisors is an integer number (1330775026).

Almost surely, 2^2661550051 is an apocalyptic number.

2661550051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661550051 is an equidigital number, since it uses as much as digits as its factorization.

2661550051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 2661550051 is about 51590.2127442793. The cubic root of 2661550051 is about 1385.8350650552.

The spelling of 2661550051 in words is "two billion, six hundred sixty-one million, five hundred fifty thousand, fifty-one".