672205553 has 2 divisors, whose sum is σ = 672205554. Its totient is φ = 672205552.

The previous prime is 672205487. The next prime is 672205571. The reversal of 672205553 is 355502276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475981489 + 196224064 = 21817^2 + 14008^2 .

It is a cyclic number.

It is not a de Polignac number, because 672205553 - 2¹⁴ = 672189169 is a prime.

It is not a weakly prime, because it can be changed into another prime (672205253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336102776 + 336102777.

It is an arithmetic number, because the mean of its divisors is an integer number (336102777).

Almost surely, 2^672205553 is an apocalyptic number.

It is an amenable number.

672205553 is a deficient number, since it is larger than the sum of its proper divisors (1).

672205553 is an equidigital number, since it uses as much as digits as its factorization.

672205553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 672205553 is about 25926.9271800574. The cubic root of 672205553 is about 875.9931267401.

The spelling of 672205553 in words is "six hundred seventy-two million, two hundred five thousand, five hundred fifty-three".