561552453 has 64 divisors (see below), whose sum is σ = 1042237440. Its totient is φ = 290304000.

The previous prime is 561552403. The next prime is 561552457. The reversal of 561552453 is 354255165.

561552453 is a `hidden beast` number, since 5 + 61 + 552 + 45 + 3 = 666.

It is not a de Polignac number, because 561552453 - 2⁶ = 561552389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561552457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 533778 + ... + 534828.

It is an arithmetic number, because the mean of its divisors is an integer number (16284960).

Almost surely, 2^561552453 is an apocalyptic number.

It is an amenable number.

561552453 is a deficient number, since it is larger than the sum of its proper divisors (480684987).

561552453 is a wasteful number, since it uses less digits than its factorization.

561552453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1329 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 561552453 is about 23697.0979868844. The cubic root of 561552453 is about 825.0180359693.

The spelling of 561552453 in words is "five hundred sixty-one million, five hundred fifty-two thousand, four hundred fifty-three".