6725531 has 2 divisors, whose sum is σ = 6725532. Its totient is φ = 6725530.

The previous prime is 6725519. The next prime is 6725533. The reversal of 6725531 is 1355276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6725531 - 2¹⁰ = 6724507 is a prime.

It is a super-2 number, since 2×6725531² = 90465534463922, which contains 22 as substring.

Together with 6725533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6725494 and 6725503.

It is not a weakly prime, because it can be changed into another prime (6725533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3362765 + 3362766.

It is an arithmetic number, because the mean of its divisors is an integer number (3362766).

Almost surely, 2^6725531 is an apocalyptic number.

6725531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6725531 is an equidigital number, since it uses as much as digits as its factorization.

6725531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 29.

The square root of 6725531 is about 2593.3628747246. The cubic root of 6725531 is about 188.7595179622.

The spelling of 6725531 in words is "six million, seven hundred twenty-five thousand, five hundred thirty-one".