422550613 has 2 divisors, whose sum is σ = 422550614. Its totient is φ = 422550612.

The previous prime is 422550559. The next prime is 422550617. The reversal of 422550613 is 316055224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408727089 + 13823524 = 20217^2 + 3718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422550613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422550617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211275306 + 211275307.

It is an arithmetic number, because the mean of its divisors is an integer number (211275307).

Almost surely, 2^422550613 is an apocalyptic number.

It is an amenable number.

422550613 is a deficient number, since it is larger than the sum of its proper divisors (1).

422550613 is an equidigital number, since it uses as much as digits as its factorization.

422550613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 422550613 is about 20556.0359262188. The cubic root of 422550613 is about 750.4001497282.

The spelling of 422550613 in words is "four hundred twenty-two million, five hundred fifty thousand, six hundred thirteen".