805225051 has 2 divisors, whose sum is σ = 805225052. Its totient is φ = 805225050.

The previous prime is 805225037. The next prime is 805225063. The reversal of 805225051 is 150522508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805225051 - 2¹³ = 805216859 is a prime.

It is not a weakly prime, because it can be changed into another prime (805225021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402612525 + 402612526.

It is an arithmetic number, because the mean of its divisors is an integer number (402612526).

Almost surely, 2^805225051 is an apocalyptic number.

805225051 is a deficient number, since it is larger than the sum of its proper divisors (1).

805225051 is an equidigital number, since it uses as much as digits as its factorization.

805225051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 805225051 is about 28376.4876438223. The cubic root of 805225051 is about 930.3344274576.

Adding to 805225051 its reverse (150522508), we get a palindrome (955747559).

The spelling of 805225051 in words is "eight hundred five million, two hundred twenty-five thousand, fifty-one".