549937451 has 4 divisors (see below), whose sum is σ = 628499952. Its totient is φ = 471374952.

The previous prime is 549937433. The next prime is 549937457. The reversal of 549937451 is 154739945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 549937451 - 2¹⁴ = 549921067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549937396 and 549937405.

It is not an unprimeable number, because it can be changed into a prime (549937457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39281240 + ... + 39281253.

It is an arithmetic number, because the mean of its divisors is an integer number (157124988).

Almost surely, 2^549937451 is an apocalyptic number.

549937451 is a deficient number, since it is larger than the sum of its proper divisors (78562501).

549937451 is an equidigital number, since it uses as much as digits as its factorization.

549937451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78562500.

The product of its digits is 680400, while the sum is 47.

The square root of 549937451 is about 23450.7452120396. The cubic root of 549937451 is about 819.2902101952.

The spelling of 549937451 in words is "five hundred forty-nine million, nine hundred thirty-seven thousand, four hundred fifty-one".