10553387 has 4 divisors (see below), whose sum is σ = 11365200. Its totient is φ = 9741576.

The previous prime is 10553381. The next prime is 10553393. The reversal of 10553387 is 78335501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78335501 = 5591 ⋅14011.

It is an interprime number because it is at equal distance from previous prime (10553381) and next prime (10553393).

It is not a de Polignac number, because 10553387 - 2¹⁸ = 10291243 is a prime.

It is a super-2 number, since 2×10553387² = 222747954343538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10553381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405887 + ... + 405912.

It is an arithmetic number, because the mean of its divisors is an integer number (2841300).

Almost surely, 2^10553387 is an apocalyptic number.

10553387 is a deficient number, since it is larger than the sum of its proper divisors (811813).

10553387 is an equidigital number, since it uses as much as digits as its factorization.

10553387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811812.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 10553387 is about 3248.5976974689. The cubic root of 10553387 is about 219.3464557845.

Adding to 10553387 its reverse (78335501), we get a palindrome (88888888).

The spelling of 10553387 in words is "ten million, five hundred fifty-three thousand, three hundred eighty-seven".