10555557 has 8 divisors (see below), whose sum is σ = 14145600. Its totient is φ = 7001280.

The previous prime is 10555553. The next prime is 10555561. The reversal of 10555557 is 75555501.

It is an interprime number because it is at equal distance from previous prime (10555553) and next prime (10555561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10555557 - 2² = 10555553 is a prime.

It is a super-2 number, since 2×10555557² = 222839567160498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10555553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8244 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (1768200).

Almost surely, 2^10555557 is an apocalyptic number.

It is an amenable number.

10555557 is a deficient number, since it is larger than the sum of its proper divisors (3590043).

10555557 is a wasteful number, since it uses less digits than its factorization.

10555557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17883.

The product of its (nonzero) digits is 21875, while the sum is 33.

The square root of 10555557 is about 3248.9316705650. The cubic root of 10555557 is about 219.3614888473.

The spelling of 10555557 in words is "ten million, five hundred fifty-five thousand, five hundred fifty-seven".