550091520 has 288 divisors, whose sum is σ = 2130992640. Its totient is φ = 133263360.

The previous prime is 550091519. The next prime is 550091533. The reversal of 550091520 is 25190055.

550091520 is a `hidden beast` number, since 5 + 50 + 0 + 91 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379437 + ... + 380883.

It is an arithmetic number, because the mean of its divisors is an integer number (7399280).

Almost surely, 2^550091520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550091520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065496320).

550091520 is an abundant number, since it is smaller than the sum of its proper divisors (1580901120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550091520 is a wasteful number, since it uses less digits than its factorization.

550091520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 550091520 is about 23454.0299309095. The cubic root of 550091520 is about 819.3667131000.

It can be divided in two parts, 5500 and 91520, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 550091520 in words is "five hundred fifty million, ninety-one thousand, five hundred twenty".