672542501 has 2 divisors, whose sum is σ = 672542502. Its totient is φ = 672542500.

The previous prime is 672542483. The next prime is 672542573. The reversal of 672542501 is 105245276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646481476 + 26061025 = 25426^2 + 5105^2 .

It is a cyclic number.

It is not a de Polignac number, because 672542501 - 2¹⁰ = 672541477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672542581) 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 as a sum of consecutive naturals, namely, 336271250 + 336271251.

It is an arithmetic number, because the mean of its divisors is an integer number (336271251).

Almost surely, 2^672542501 is an apocalyptic number.

It is an amenable number.

672542501 is a deficient number, since it is larger than the sum of its proper divisors (1).

672542501 is an equidigital number, since it uses as much as digits as its factorization.

672542501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 672542501 is about 25933.4243978692. The cubic root of 672542501 is about 876.1394683002.

Adding to 672542501 its reverse (105245276), we get a palindrome (777787777).

The spelling of 672542501 in words is "six hundred seventy-two million, five hundred forty-two thousand, five hundred one".