672750125 has 8 divisors (see below), whose sum is σ = 839592312. Its totient is φ = 538200000.

The previous prime is 672750121. The next prime is 672750137. The reversal of 672750125 is 521057276.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115648516 + 557101609 = 10754^2 + 23603^2 .

It is not a de Polignac number, because 672750125 - 2² = 672750121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672750121) 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 7 ways as a sum of consecutive naturals, for example, 2690876 + ... + 2691125.

It is an arithmetic number, because the mean of its divisors is an integer number (104949039).

Almost surely, 2^672750125 is an apocalyptic number.

It is an amenable number.

672750125 is a deficient number, since it is larger than the sum of its proper divisors (166842187).

672750125 is an equidigital number, since it uses as much as digits as its factorization.

672750125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382016 (or 5382006 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 672750125 is about 25937.4271083313. The cubic root of 672750125 is about 876.2296181741.

The spelling of 672750125 in words is "six hundred seventy-two million, seven hundred fifty thousand, one hundred twenty-five".