11425021 has 4 divisors (see below), whose sum is σ = 11484412. Its totient is φ = 11365632.

The previous prime is 11424979. The next prime is 11425027. The reversal of 11425021 is 12052411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12052411 = 7 ⋅1721773.

It can be written as a sum of positive squares in 2 ways, for example, as 3556996 + 7868025 = 1886^2 + 2805^2 .

It is a cyclic number.

It is not a de Polignac number, because 11425021 - 2¹⁵ = 11392253 is a prime.

It is a super-2 number, since 2×11425021² = 261062209700882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11424986 and 11425004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11425027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29406 + ... + 29791.

It is an arithmetic number, because the mean of its divisors is an integer number (2871103).

Almost surely, 2^11425021 is an apocalyptic number.

It is an amenable number.

11425021 is a deficient number, since it is larger than the sum of its proper divisors (59391).

11425021 is an equidigital number, since it uses as much as digits as its factorization.

11425021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59390.

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

The square root of 11425021 is about 3380.0918626570. The cubic root of 11425021 is about 225.2262481407.

Adding to 11425021 its reverse (12052411), we get a palindrome (23477432).

The spelling of 11425021 in words is "eleven million, four hundred twenty-five thousand, twenty-one".