11390525 has 12 divisors (see below), whose sum is σ = 14166132. Its totient is φ = 9085440.

The previous prime is 11390521. The next prime is 11390531. The reversal of 11390525 is 52509311.

It can be written as a sum of positive squares in 6 ways, for example, as 174724 + 11215801 = 418^2 + 3349^2 .

It is not a de Polignac number, because 11390525 - 2² = 11390521 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11390494 and 11390503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11390521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16487 + ... + 17163.

It is an arithmetic number, because the mean of its divisors is an integer number (1180511).

Almost surely, 2^11390525 is an apocalyptic number.

It is an amenable number.

11390525 is a deficient number, since it is larger than the sum of its proper divisors (2775607).

11390525 is an equidigital number, since it uses as much as digits as its factorization.

11390525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 11390525 is about 3374.9851851527. The cubic root of 11390525 is about 224.9993415619. Note that the first 3 decimals are identical.

Adding to 11390525 its reverse (52509311), we get a palindrome (63899836).

The spelling of 11390525 in words is "eleven million, three hundred ninety thousand, five hundred twenty-five".