549090536 has 8 divisors (see below), whose sum is σ = 1029544770. Its totient is φ = 274545264.

The previous prime is 549090517. The next prime is 549090589. The reversal of 549090536 is 635090945.

It can be written as a sum of positive squares in only one way, i.e., 302412100 + 246678436 = 17390^2 + 15706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 549090493 and 549090502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34318151 + ... + 34318166.

Almost surely, 2^549090536 is an apocalyptic number.

It is an amenable number.

549090536 is a deficient number, since it is larger than the sum of its proper divisors (480454234).

549090536 is a wasteful number, since it uses less digits than its factorization.

549090536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68636323 (or 68636319 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 549090536 is about 23432.6809392353. The cubic root of 549090536 is about 818.8694195137.

The spelling of 549090536 in words is "five hundred forty-nine million, ninety thousand, five hundred thirty-six".