10656557 has 2 divisors, whose sum is σ = 10656558. Its totient is φ = 10656556.

The previous prime is 10656539. The next prime is 10656577. The reversal of 10656557 is 75565601.

10656557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6869641 + 3786916 = 2621^2 + 1946^2 .

It is an emirp because it is prime and its reverse (75565601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10656557 - 2⁸ = 10656301 is a prime.

It is a super-2 number, since 2×10656557² = 227124414188498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10656577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328278 + 5328279.

It is an arithmetic number, because the mean of its divisors is an integer number (5328279).

Almost surely, 2^10656557 is an apocalyptic number.

It is an amenable number.

10656557 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656557 is an equidigital number, since it uses as much as digits as its factorization.

10656557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 10656557 is about 3264.4382365118. The cubic root of 10656557 is about 220.0589167274.

The spelling of 10656557 in words is "ten million, six hundred fifty-six thousand, five hundred fifty-seven".