10553409 has 20 divisors (see below), whose sum is σ = 15918276. Its totient is φ = 6967296.

The previous prime is 10553407. The next prime is 10553429. The reversal of 10553409 is 90435501.

It can be written as a sum of positive squares in 2 ways, for example, as 3504384 + 7049025 = 1872^2 + 2655^2 .

It is not a de Polignac number, because 10553409 - 2¹ = 10553407 is a prime.

It is a super-2 number, since 2×10553409² = 222748883042562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10553407) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8577 + ... + 9729.

Almost surely, 2^10553409 is an apocalyptic number.

It is an amenable number.

10553409 is a deficient number, since it is larger than the sum of its proper divisors (5364867).

10553409 is a wasteful number, since it uses less digits than its factorization.

10553409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 10553409 is about 3248.6010835435. The cubic root of 10553409 is about 219.3466082038.

The spelling of 10553409 in words is "ten million, five hundred fifty-three thousand, four hundred nine".