549523513 has 16 divisors (see below), whose sum is σ = 688214016. Its totient is φ = 426266640.

The previous prime is 549523493. The next prime is 549523517. The reversal of 549523513 is 315325945.

It is a cyclic number.

It is not a de Polignac number, because 549523513 - 2²⁵ = 515969081 is a prime.

It is a super-2 number, since 2×549523513² = 603952182679722338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (549523517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170 + ... + 33172.

It is an arithmetic number, because the mean of its divisors is an integer number (43013376).

Almost surely, 2^549523513 is an apocalyptic number.

It is an amenable number.

549523513 is a deficient number, since it is larger than the sum of its proper divisors (138690503).

549523513 is a wasteful number, since it uses less digits than its factorization.

549523513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32244.

The product of its digits is 81000, while the sum is 37.

The square root of 549523513 is about 23441.9178609601. The cubic root of 549523513 is about 819.0845986448.

The spelling of 549523513 in words is "five hundred forty-nine million, five hundred twenty-three thousand, five hundred thirteen".