672342525 has 90 divisors (see below), whose sum is σ = 1300509210. Its totient is φ = 342982080.

The previous prime is 672342499. The next prime is 672342527. The reversal of 672342525 is 525243276.

It can be written as a sum of positive squares in 3 ways, for example, as 45441081 + 626901444 = 6741^2 + 25038^2 .

It is not a de Polignac number, because 672342525 - 2⁸ = 672342269 is a prime.

Its product of digits (100800) is a multiple of the sum of its prime divisors (144).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 672342525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672342527) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 6283522 + ... + 6283628.

Almost surely, 2^672342525 is an apocalyptic number.

It is an amenable number.

672342525 is a deficient number, since it is larger than the sum of its proper divisors (628166685).

672342525 is a wasteful number, since it uses less digits than its factorization.

672342525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 144 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 672342525 is about 25929.5685463526. The cubic root of 672342525 is about 876.0526216278.

The spelling of 672342525 in words is "six hundred seventy-two million, three hundred forty-two thousand, five hundred twenty-five".