11421025 has 48 divisors (see below), whose sum is σ = 18748800. Its totient is φ = 6681600.

The previous prime is 11421019. The next prime is 11421029. The reversal of 11421025 is 52012411.

11421025 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11421025 - 2³ = 11421017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32551 + ... + 32899.

It is an arithmetic number, because the mean of its divisors is an integer number (390600).

Almost surely, 2^11421025 is an apocalyptic number.

It is an amenable number.

11421025 is a deficient number, since it is larger than the sum of its proper divisors (7327775).

11421025 is a wasteful number, since it uses less digits than its factorization.

11421025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11421025 is about 3379.5007027666. The cubic root of 11421025 is about 225.1999868021.

Adding to 11421025 its reverse (52012411), we get a palindrome (63433436).

It can be divided in two parts, 1142102 and 5, that multiplied together give a triangular number (5710510 = T₃₃₇₉).

The spelling of 11421025 in words is "eleven million, four hundred twenty-one thousand, twenty-five".