550091555 has 16 divisors (see below), whose sum is σ = 711383904. Its totient is φ = 405937920.

The previous prime is 550091539. The next prime is 550091567. The reversal of 550091555 is 555190055.

It is not a de Polignac number, because 550091555 - 2⁴ = 550091539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156932 + ... + 160398.

It is an arithmetic number, because the mean of its divisors is an integer number (44461494).

Almost surely, 2^550091555 is an apocalyptic number.

550091555 is a deficient number, since it is larger than the sum of its proper divisors (161292349).

550091555 is a wasteful number, since it uses less digits than its factorization.

550091555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926.

The product of its (nonzero) digits is 28125, while the sum is 35.

The square root of 550091555 is about 23454.0306770499. The cubic root of 550091555 is about 819.3667304776.

The spelling of 550091555 in words is "five hundred fifty million, ninety-one thousand, five hundred fifty-five".