10662557 has 2 divisors, whose sum is σ = 10662558. Its totient is φ = 10662556.

The previous prime is 10662527. The next prime is 10662559. The reversal of 10662557 is 75526601.

It is a happy number.

10662557 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 556516 = 3179^2 + 746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10662557 is a prime.

It is a super-2 number, since 2×10662557² = 227380243556498, which contains 22 as substring.

Together with 10662559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10662559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331278 + 5331279.

It is an arithmetic number, because the mean of its divisors is an integer number (5331279).

Almost surely, 2^10662557 is an apocalyptic number.

It is an amenable number.

10662557 is a deficient number, since it is larger than the sum of its proper divisors (1).

10662557 is an equidigital number, since it uses as much as digits as its factorization.

10662557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 10662557 is about 3265.3571014515. The cubic root of 10662557 is about 220.1002091691.

The spelling of 10662557 in words is "ten million, six hundred sixty-two thousand, five hundred fifty-seven".