453553561 has 2 divisors, whose sum is σ = 453553562. Its totient is φ = 453553560.

The previous prime is 453553559. The next prime is 453553567. The reversal of 453553561 is 165355354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418447936 + 35105625 = 20456^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 453553561 - 2¹ = 453553559 is a prime.

Together with 453553559, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 453553561.

It is not a weakly prime, because it can be changed into another prime (453553567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226776780 + 226776781.

It is an arithmetic number, because the mean of its divisors is an integer number (226776781).

Almost surely, 2^453553561 is an apocalyptic number.

It is an amenable number.

453553561 is a deficient number, since it is larger than the sum of its proper divisors (1).

453553561 is an equidigital number, since it uses as much as digits as its factorization.

453553561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135000, while the sum is 37.

The square root of 453553561 is about 21296.7969657411. The cubic root of 453553561 is about 768.3212772794.

The spelling of 453553561 in words is "four hundred fifty-three million, five hundred fifty-three thousand, five hundred sixty-one".