10557620 has 12 divisors (see below), whose sum is σ = 22171044. Its totient is φ = 4223040.

The previous prime is 10557619. The next prime is 10557641. The reversal of 10557620 is 2675501.

It can be written as a sum of positive squares in 2 ways, for example, as 5044516 + 5513104 = 2246^2 + 2348^2 .

It is a super-2 number, since 2×10557620² = 222926680128800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10557620.

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, 263921 + ... + 263960.

It is an arithmetic number, because the mean of its divisors is an integer number (1847587).

Almost surely, 2^10557620 is an apocalyptic number.

10557620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10557620 is an abundant number, since it is smaller than the sum of its proper divisors (11613424).

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

10557620 is a wasteful number, since it uses less digits than its factorization.

10557620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527890 (or 527888 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 10557620 is about 3249.2491440331. The cubic root of 10557620 is about 219.3757787382.

The spelling of 10557620 in words is "ten million, five hundred fifty-seven thousand, six hundred twenty".