10555320 has 32 divisors (see below), whose sum is σ = 31666320. Its totient is φ = 2814720.

The previous prime is 10555319. The next prime is 10555331. The reversal of 10555320 is 2355501.

Added to its reverse (2355501) it gives a triangular number (12910821 = T₅₀₈₁).

It is a super-2 number, since 2×10555320² = 222829560604800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43861 + ... + 44100.

Almost surely, 2^10555320 is an apocalyptic number.

10555320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10555320 is an abundant number, since it is smaller than the sum of its proper divisors (21111000).

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

10555320 is a wasteful number, since it uses less digits than its factorization.

10555320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87975 (or 87971 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 10555320 is about 3248.8951968323. The cubic root of 10555320 is about 219.3598470877.

Adding to 10555320 its reverse (2355501), we get a triangular number (12910821 = T₅₀₈₁).

The spelling of 10555320 in words is "ten million, five hundred fifty-five thousand, three hundred twenty".