251212053405233 has 2 divisors, whose sum is σ = 251212053405234. Its totient is φ = 251212053405232.

The previous prime is 251212053405227. The next prime is 251212053405277. The reversal of 251212053405233 is 332504350212152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148082808669184 + 103129244736049 = 12168928^2 + 10155257^2 .

It is a cyclic number.

It is not a de Polignac number, because 251212053405233 - 2³⁴ = 251194873536049 is a prime.

It is not a weakly prime, because it can be changed into another prime (251212053407233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125606026702616 + 125606026702617.

It is an arithmetic number, because the mean of its divisors is an integer number (125606026702617).

Almost surely, 2^{251212053405233} is an apocalyptic number.

It is an amenable number.

251212053405233 is a deficient number, since it is larger than the sum of its proper divisors (1).

251212053405233 is an equidigital number, since it uses as much as digits as its factorization.

251212053405233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 251212053405233 in words is "two hundred fifty-one trillion, two hundred twelve billion, fifty-three million, four hundred five thousand, two hundred thirty-three".