253453205461 has 2 divisors, whose sum is σ = 253453205462. Its totient is φ = 253453205460.

The previous prime is 253453205351. The next prime is 253453205507. The reversal of 253453205461 is 164502354352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249290504100 + 4162701361 = 499290^2 + 64519^2 .

It is a cyclic number.

It is not a de Polignac number, because 253453205461 - 2¹⁷ = 253453074389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253453200461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126726602730 + 126726602731.

It is an arithmetic number, because the mean of its divisors is an integer number (126726602731).

Almost surely, 2^253453205461 is an apocalyptic number.

It is an amenable number.

253453205461 is a deficient number, since it is larger than the sum of its proper divisors (1).

253453205461 is an equidigital number, since it uses as much as digits as its factorization.

253453205461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 253453205461 in words is "two hundred fifty-three billion, four hundred fifty-three million, two hundred five thousand, four hundred sixty-one".