11252278 has 8 divisors (see below), whose sum is σ = 16895160. Its totient is φ = 5620560.

The previous prime is 11252273. The next prime is 11252279. The reversal of 11252278 is 87225211.

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

It is a super-2 number, since 2×11252278² = 253227520378568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11252273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513 + ... + 4771.

It is an arithmetic number, because the mean of its divisors is an integer number (2111895).

Almost surely, 2^11252278 is an apocalyptic number.

11252278 is a deficient number, since it is larger than the sum of its proper divisors (5642882).

11252278 is a wasteful number, since it uses less digits than its factorization.

11252278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582.

The product of its digits is 2240, while the sum is 28.

The square root of 11252278 is about 3354.4415332511. The cubic root of 11252278 is about 224.0853602183.

Adding to 11252278 its reverse (87225211), we get a palindrome (98477489).

It can be divided in two parts, 1125 and 2278, that added together give a triangular number (3403 = T₈₂).

The spelling of 11252278 in words is "eleven million, two hundred fifty-two thousand, two hundred seventy-eight".