10288505 has 4 divisors (see below), whose sum is σ = 12346212. Its totient is φ = 8230800.

The previous prime is 10288501. The next prime is 10288511. The reversal of 10288505 is 50588201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2493241 + 7795264 = 1579^2 + 2792^2 .

It is not a de Polignac number, because 10288505 - 2² = 10288501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10288501) 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, 1028846 + ... + 1028855.

It is an arithmetic number, because the mean of its divisors is an integer number (3086553).

Almost surely, 2^10288505 is an apocalyptic number.

It is an amenable number.

10288505 is a deficient number, since it is larger than the sum of its proper divisors (2057707).

10288505 is an equidigital number, since it uses as much as digits as its factorization.

10288505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057706.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 10288505 is about 3207.5699524718. The cubic root of 10288505 is about 217.4957413179.

The spelling of 10288505 in words is "ten million, two hundred eighty-eight thousand, five hundred five".