549967951 has 4 divisors (see below), whose sum is σ = 592273192. Its totient is φ = 507662712.

The previous prime is 549967937. The next prime is 549967961. The reversal of 549967951 is 159769945.

549967951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159769945 = 5 ⋅31953989.

It is a cyclic number.

It is not a de Polignac number, because 549967951 - 2⁷ = 549967823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549967892 and 549967901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549967961) 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, 21152601 + ... + 21152626.

It is an arithmetic number, because the mean of its divisors is an integer number (148068298).

Almost surely, 2^549967951 is an apocalyptic number.

549967951 is a deficient number, since it is larger than the sum of its proper divisors (42305241).

549967951 is a wasteful number, since it uses less digits than its factorization.

549967951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42305240.

The product of its digits is 3061800, while the sum is 55.

The square root of 549967951 is about 23451.3955021871. The cubic root of 549967951 is about 819.3053560931.

The spelling of 549967951 in words is "five hundred forty-nine million, nine hundred sixty-seven thousand, nine hundred fifty-one".