10553403 has 8 divisors (see below), whose sum is σ = 16081408. Its totient is φ = 6030504.

The previous prime is 10553393. The next prime is 10553407. The reversal of 10553403 is 30435501.

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

It is not a de Polignac number, because 10553403 - 2⁶ = 10553339 is a prime.

It is a super-2 number, since 2×10553403² = 222748629760818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 502543 = 10553403 / (1 + 0 + 5 + 5 + 3 + 4 + 0 + 3).

It is a self number, because there is not a number n which added to its sum of digits gives 10553403.

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 7 ways as a sum of consecutive naturals, for example, 251251 + ... + 251292.

It is an arithmetic number, because the mean of its divisors is an integer number (2010176).

Almost surely, 2^10553403 is an apocalyptic number.

10553403 is a deficient number, since it is larger than the sum of its proper divisors (5528005).

10553403 is an equidigital number, since it uses as much as digits as its factorization.

10553403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502553.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 10553403 is about 3248.6001600689. The cubic root of 10553403 is about 219.3465666349.

Adding to 10553403 its reverse (30435501), we get a palindrome (40988904).

The spelling of 10553403 in words is "ten million, five hundred fifty-three thousand, four hundred three".