562421661 has 8 divisors (see below), whose sum is σ = 755291040. Its totient is φ = 372250032.

The previous prime is 562421593. The next prime is 562421677. The reversal of 562421661 is 166124265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-562421661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (562421681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673950 + ... + 674783.

It is an arithmetic number, because the mean of its divisors is an integer number (94411380).

Almost surely, 2^562421661 is an apocalyptic number.

It is an amenable number.

562421661 is a deficient number, since it is larger than the sum of its proper divisors (192869379).

562421661 is a wasteful number, since it uses less digits than its factorization.

562421661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348875.

The product of its digits is 17280, while the sum is 33.

The square root of 562421661 is about 23715.4308626261. The cubic root of 562421661 is about 825.4434890106.

The spelling of 562421661 in words is "five hundred sixty-two million, four hundred twenty-one thousand, six hundred sixty-one".