549406025 has 24 divisors (see below), whose sum is σ = 803710464. Its totient is φ = 364579200.

The previous prime is 549406001. The next prime is 549406043. The reversal of 549406025 is 520604945.

It is a happy number.

It is not a de Polignac number, because 549406025 - 2¹⁰ = 549405001 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 45212 + ... + 56061.

It is an arithmetic number, because the mean of its divisors is an integer number (33487936).

Almost surely, 2^549406025 is an apocalyptic number.

It is an amenable number.

549406025 is a deficient number, since it is larger than the sum of its proper divisors (254304439).

549406025 is a wasteful number, since it uses less digits than its factorization.

549406025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101321 (or 101316 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 549406025 is about 23439.4117886947. The cubic root of 549406025 is about 819.0262211183.

The spelling of 549406025 in words is "five hundred forty-nine million, four hundred six thousand, twenty-five".