5405649253 has 2 divisors, whose sum is σ = 5405649254. Its totient is φ = 5405649252.

The previous prime is 5405649251. The next prime is 5405649281. The reversal of 5405649253 is 3529465045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4686497764 + 719151489 = 68458^2 + 26817^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405649253 - 2¹ = 5405649251 is a prime.

Together with 5405649251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5405649251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702824626 + 2702824627.

It is an arithmetic number, because the mean of its divisors is an integer number (2702824627).

Almost surely, 2^5405649253 is an apocalyptic number.

It is an amenable number.

5405649253 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405649253 is an equidigital number, since it uses as much as digits as its factorization.

5405649253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 43.

The square root of 5405649253 is about 73523.1205336117. The cubic root of 5405649253 is about 1755.0222265944.

The spelling of 5405649253 in words is "five billion, four hundred five million, six hundred forty-nine thousand, two hundred fifty-three".