549496457 has 4 divisors (see below), whose sum is σ = 581819796. Its totient is φ = 517173120.

The previous prime is 549496447. The next prime is 549496471. The reversal of 549496457 is 754694945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754694945 = 5 ⋅150938989.

It can be written as a sum of positive squares in 2 ways, for example, as 514200976 + 35295481 = 22676^2 + 5941^2 .

It is a cyclic number.

It is not a de Polignac number, because 549496457 - 2¹⁰ = 549495433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549496399 and 549496408.

It is not an unprimeable number, because it can be changed into a prime (549496417) 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, 16161644 + ... + 16161677.

It is an arithmetic number, because the mean of its divisors is an integer number (145454949).

Almost surely, 2^549496457 is an apocalyptic number.

It is an amenable number.

549496457 is a deficient number, since it is larger than the sum of its proper divisors (32323339).

549496457 is a wasteful number, since it uses less digits than its factorization.

549496457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32323338.

The product of its digits is 5443200, while the sum is 53.

The square root of 549496457 is about 23441.3407679680. The cubic root of 549496457 is about 819.0711557765.

The spelling of 549496457 in words is "five hundred forty-nine million, four hundred ninety-six thousand, four hundred fifty-seven".