10551720 has 32 divisors (see below), whose sum is σ = 31655520. Its totient is φ = 2813760.

The previous prime is 10551701. The next prime is 10551721. The reversal of 10551720 is 2715501.

It is a super-2 number, since 2×10551720² = 222677589916800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10551721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43846 + ... + 44085.

It is an arithmetic number, because the mean of its divisors is an integer number (989235).

Almost surely, 2^10551720 is an apocalyptic number.

10551720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10551720 is an abundant number, since it is smaller than the sum of its proper divisors (21103800).

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

10551720 is a wasteful number, since it uses less digits than its factorization.

10551720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87945 (or 87941 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 10551720 is about 3248.3411150924. The cubic root of 10551720 is about 219.3349059445.

It can be divided in two parts, 1055 and 1720, that added together give a triangular number (2775 = T₇₄).

The spelling of 10551720 in words is "ten million, five hundred fifty-one thousand, seven hundred twenty".