549547890 has 32 divisors (see below), whose sum is σ = 1327660416. Its totient is φ = 145574400.

The previous prime is 549547879. The next prime is 549547903. The reversal of 549547890 is 98745945.

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, 56127 + ... + 65186.

It is an arithmetic number, because the mean of its divisors is an integer number (41489388).

Almost surely, 2^549547890 is an apocalyptic number.

549547890 is an abundant number, since it is smaller than the sum of its proper divisors (778112526).

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

549547890 is a wasteful number, since it uses less digits than its factorization.

549547890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121474.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 549547890 is about 23442.4377998535. The cubic root of 549547890 is about 819.0967100647.

The spelling of 549547890 in words is "five hundred forty-nine million, five hundred forty-seven thousand, eight hundred ninety".