550454545 has 32 divisors (see below), whose sum is σ = 688455936. Its totient is φ = 422304000.

The previous prime is 550454521. The next prime is 550454563. The reversal of 550454545 is 545454055.

It is not a de Polignac number, because 550454545 - 2⁷ = 550454417 is a prime.

It is a super-2 number, since 2×550454545² = 606000412222314050, which contains 22 as substring.

It is a Duffinian number.

550454545 is a modest number, since divided by 454545 gives 550 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3296052 + ... + 3296218.

It is an arithmetic number, because the mean of its divisors is an integer number (21514248).

Almost surely, 2^550454545 is an apocalyptic number.

It is an amenable number.

550454545 is a deficient number, since it is larger than the sum of its proper divisors (138001391).

550454545 is a wasteful number, since it uses less digits than its factorization.

550454545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 200000, while the sum is 37.

The square root of 550454545 is about 23461.7677296490. The cubic root of 550454545 is about 819.5469165640.

The spelling of 550454545 in words is "five hundred fifty million, four hundred fifty-four thousand, five hundred forty-five".