11889225 has 36 divisors (see below), whose sum is σ = 21718476. Its totient is φ = 6215040.

The previous prime is 11889203. The next prime is 11889233. The reversal of 11889225 is 52298811.

11889225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 356409 + 11532816 = 597^2 + 3396^2 .

It is not a de Polignac number, because 11889225 - 2⁸ = 11888969 is a prime.

It is a super-2 number, since 2×11889225² = 282707342201250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11889225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11427 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (603291).

Almost surely, 2^11889225 is an apocalyptic number.

11889225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11889225 is a deficient number, since it is larger than the sum of its proper divisors (9829251).

11889225 is a wasteful number, since it uses less digits than its factorization.

11889225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1058 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 11889225 is about 3448.0755502164. The cubic root of 11889225 is about 228.2361933691.

The spelling of 11889225 in words is "eleven million, eight hundred eighty-nine thousand, two hundred twenty-five".