562145221 has 4 divisors (see below), whose sum is σ = 613249344. Its totient is φ = 511041100.

The previous prime is 562145203. The next prime is 562145237. The reversal of 562145221 is 122541265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 562145221 - 2¹⁷ = 562014149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 562145221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (562145201) 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 3 ways as a sum of consecutive naturals, for example, 25552045 + ... + 25552066.

It is an arithmetic number, because the mean of its divisors is an integer number (153312336).

Almost surely, 2^562145221 is an apocalyptic number.

It is an amenable number.

562145221 is a deficient number, since it is larger than the sum of its proper divisors (51104123).

562145221 is a wasteful number, since it uses less digits than its factorization.

562145221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51104122.

The product of its digits is 4800, while the sum is 28.

The square root of 562145221 is about 23709.6018735026. The cubic root of 562145221 is about 825.3082269170.

Adding to 562145221 its reverse (122541265), we get a palindrome (684686486).

The spelling of 562145221 in words is "five hundred sixty-two million, one hundred forty-five thousand, two hundred twenty-one".