11005425 has 36 divisors (see below), whose sum is σ = 20209644. Its totient is φ = 5721600.

The previous prime is 11005399. The next prime is 11005433. The reversal of 11005425 is 52450011.

It can be written as a sum of positive squares in 6 ways, for example, as 1806336 + 9199089 = 1344^2 + 3033^2 .

It is not a de Polignac number, because 11005425 - 2¹⁸ = 10743281 is a prime.

It is a super-2 number, since 2×11005425² = 242238758861250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11005398 and 11005407.

It is a congruent number.

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, 8629 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (561379).

Almost surely, 2^11005425 is an apocalyptic number.

11005425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11005425 is a deficient number, since it is larger than the sum of its proper divisors (9204219).

11005425 is a wasteful number, since it uses less digits than its factorization.

11005425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 11005425 is about 3317.4425390653. The cubic root of 11005425 is about 222.4345639330.

Adding to 11005425 its reverse (52450011), we get a palindrome (63455436).

The spelling of 11005425 in words is "eleven million, five thousand, four hundred twenty-five".