11247505 has 8 divisors (see below), whose sum is σ = 13962600. Its totient is φ = 8687616.

The previous prime is 11247503. The next prime is 11247517. The reversal of 11247505 is 50574211.

It can be written as a sum of positive squares in 4 ways, for example, as 1065024 + 10182481 = 1032^2 + 3191^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11247505 - 2¹ = 11247503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11247505.

It is not an unprimeable number, because it can be changed into a prime (11247503) 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, 38640 + ... + 38929.

It is an arithmetic number, because the mean of its divisors is an integer number (1745325).

Almost surely, 2^11247505 is an apocalyptic number.

It is an amenable number.

11247505 is a deficient number, since it is larger than the sum of its proper divisors (2715095).

11247505 is an equidigital number, since it uses as much as digits as its factorization.

11247505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77603.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 11247505 is about 3353.7300129855. The cubic root of 11247505 is about 224.0536715034.

The spelling of 11247505 in words is "eleven million, two hundred forty-seven thousand, five hundred five".