422578553 has 2 divisors, whose sum is σ = 422578554. Its totient is φ = 422578552.

The previous prime is 422578549. The next prime is 422578613. The reversal of 422578553 is 355875224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282676969 + 139901584 = 16813^2 + 11828^2 .

It is a cyclic number.

It is not a de Polignac number, because 422578553 - 2² = 422578549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422578553.

It is not a weakly prime, because it can be changed into another prime (422578153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211289276 + 211289277.

It is an arithmetic number, because the mean of its divisors is an integer number (211289277).

Almost surely, 2^422578553 is an apocalyptic number.

It is an amenable number.

422578553 is a deficient number, since it is larger than the sum of its proper divisors (1).

422578553 is an equidigital number, since it uses as much as digits as its factorization.

422578553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 41.

The square root of 422578553 is about 20556.7155207246. The cubic root of 422578553 is about 750.4166887474.

The spelling of 422578553 in words is "four hundred twenty-two million, five hundred seventy-eight thousand, five hundred fifty-three".