11253561 has 8 divisors (see below), whose sum is σ = 16368864. Its totient is φ = 6820320.

The previous prime is 11253559. The next prime is 11253563. The reversal of 11253561 is 16535211.

It is an interprime number because it is at equal distance from previous prime (11253559) and next prime (11253563).

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

It is not a de Polignac number, because 11253561 - 2¹ = 11253559 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11253563) 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, 170476 + ... + 170541.

It is an arithmetic number, because the mean of its divisors is an integer number (2046108).

Almost surely, 2^11253561 is an apocalyptic number.

11253561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11253561 is a deficient number, since it is larger than the sum of its proper divisors (5115303).

11253561 is a wasteful number, since it uses less digits than its factorization.

11253561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341031.

The product of its digits is 900, while the sum is 24.

The square root of 11253561 is about 3354.6327667869. The cubic root of 11253561 is about 224.0938767335.

Adding to 11253561 its reverse (16535211), we get a palindrome (27788772).

The spelling of 11253561 in words is "eleven million, two hundred fifty-three thousand, five hundred sixty-one".