549542445 has 16 divisors (see below), whose sum is σ = 882617472. Its totient is φ = 291972800.

The previous prime is 549542437. The next prime is 549542479. The reversal of 549542445 is 544245945.

It is not a de Polignac number, because 549542445 - 2³ = 549542437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549542397 and 549542406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65706 + ... + 73595.

It is an arithmetic number, because the mean of its divisors is an integer number (55163592).

Almost surely, 2^549542445 is an apocalyptic number.

It is an amenable number.

549542445 is a deficient number, since it is larger than the sum of its proper divisors (333075027).

549542445 is a wasteful number, since it uses less digits than its factorization.

549542445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139572.

The product of its digits is 576000, while the sum is 42.

The square root of 549542445 is about 23442.3216640332. The cubic root of 549542445 is about 819.0940048129.

The spelling of 549542445 in words is "five hundred forty-nine million, five hundred forty-two thousand, four hundred forty-five".