253446046261 has 2 divisors, whose sum is σ = 253446046262. Its totient is φ = 253446046260.

The previous prime is 253446046211. The next prime is 253446046283. The reversal of 253446046261 is 162640644352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149838668100 + 103607378161 = 387090^2 + 321881^2 .

It is a cyclic number.

It is not a de Polignac number, because 253446046261 - 2²⁷ = 253311828533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253446046211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126723023130 + 126723023131.

It is an arithmetic number, because the mean of its divisors is an integer number (126723023131).

Almost surely, 2^253446046261 is an apocalyptic number.

It is an amenable number.

253446046261 is a deficient number, since it is larger than the sum of its proper divisors (1).

253446046261 is an equidigital number, since it uses as much as digits as its factorization.

253446046261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 253446046261 in words is "two hundred fifty-three billion, four hundred forty-six million, forty-six thousand, two hundred sixty-one".