673201551 has 16 divisors (see below), whose sum is σ = 995257728. Its totient is φ = 401311200.

The previous prime is 673201531. The next prime is 673201553. The reversal of 673201551 is 155102376.

It is not a de Polignac number, because 673201551 - 2¹⁹ = 672677263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673201553) 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 15 ways as a sum of consecutive naturals, for example, 165201 + ... + 169226.

It is an arithmetic number, because the mean of its divisors is an integer number (62203608).

Almost surely, 2^673201551 is an apocalyptic number.

673201551 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

673201551 is a deficient number, since it is larger than the sum of its proper divisors (322056177).

673201551 is a wasteful number, since it uses less digits than its factorization.

673201551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334502.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 673201551 is about 25946.1278613977. The cubic root of 673201551 is about 876.4255623421.

The spelling of 673201551 in words is "six hundred seventy-three million, two hundred one thousand, five hundred fifty-one".