549354631 has 8 divisors (see below), whose sum is σ = 640647200. Its totient is φ = 470875104.

The previous prime is 549354623. The next prime is 549354649. The reversal of 549354631 is 136453945.

It is not a de Polignac number, because 549354631 - 2³ = 549354623 is a prime.

It is a super-2 number, since 2×549354631² = 603581021202292322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549354601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800466 + ... + 801151.

It is an arithmetic number, because the mean of its divisors is an integer number (80080900).

Almost surely, 2^549354631 is an apocalyptic number.

549354631 is a deficient number, since it is larger than the sum of its proper divisors (91292569).

549354631 is an equidigital number, since it uses as much as digits as its factorization.

549354631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601638 (or 1601624 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 549354631 is about 23438.3154471476. The cubic root of 549354631 is about 819.0006818121. Note that the first 3 decimals are identical.

The spelling of 549354631 in words is "five hundred forty-nine million, three hundred fifty-four thousand, six hundred thirty-one".