11215425 has 24 divisors (see below), whose sum is σ = 19970944. Its totient is φ = 5520960.

The previous prime is 11215411. The next prime is 11215439. The reversal of 11215425 is 52451211.

It is an interprime number because it is at equal distance from previous prime (11215411) and next prime (11215439).

It is not a de Polignac number, because 11215425 - 2⁷ = 11215297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4777 + ... + 6726.

Almost surely, 2^11215425 is an apocalyptic number.

11215425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11215425 is a deficient number, since it is larger than the sum of its proper divisors (8755519).

11215425 is a wasteful number, since it uses less digits than its factorization.

11215425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11529 (or 11524 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 11215425 is about 3348.9438633695. The cubic root of 11215425 is about 223.8404542571.

Adding to 11215425 its reverse (52451211), we get a palindrome (63666636).

The spelling of 11215425 in words is "eleven million, two hundred fifteen thousand, four hundred twenty-five".