262640051 has 2 divisors, whose sum is σ = 262640052. Its totient is φ = 262640050.

The previous prime is 262640041. The next prime is 262640111. The reversal of 262640051 is 150046262.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-262640051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 262640051.

It is not a weakly prime, because it can be changed into another prime (262640041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131320025 + 131320026.

It is an arithmetic number, because the mean of its divisors is an integer number (131320026).

Almost surely, 2^262640051 is an apocalyptic number.

262640051 is a deficient number, since it is larger than the sum of its proper divisors (1).

262640051 is an equidigital number, since it uses as much as digits as its factorization.

262640051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 262640051 is about 16206.1732373809. The cubic root of 262640051 is about 640.4034329742.

The spelling of 262640051 in words is "two hundred sixty-two million, six hundred forty thousand, fifty-one".