10555998 has 8 divisors (see below), whose sum is σ = 21112008. Its totient is φ = 3518664.

The previous prime is 10555973. The next prime is 10556003. The reversal of 10555998 is 89955501.

It is a happy number.

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

10555998 is an admirable number.

It is a super-2 number, since 2×10555998² = 222858187552008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879661 + ... + 879672.

It is an arithmetic number, because the mean of its divisors is an integer number (2639001).

Almost surely, 2^10555998 is an apocalyptic number.

10555998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10555998 is a wasteful number, since it uses less digits than its factorization.

10555998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759338.

The product of its (nonzero) digits is 81000, while the sum is 42.

The square root of 10555998 is about 3248.9995383195. Note that the first 3 decimals coincide. The cubic root of 10555998 is about 219.3645437017.

The spelling of 10555998 in words is "ten million, five hundred fifty-five thousand, nine hundred ninety-eight".