548554545 has 128 divisors (see below), whose sum is σ = 1229230080. Its totient is φ = 225469440.

The previous prime is 548554541. The next prime is 548554549. The reversal of 548554545 is 545455845.

548554545 is a `hidden beast` number, since 5 + 48 + 554 + 54 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (548554541) and next prime (548554549).

It is not a de Polignac number, because 548554545 - 2² = 548554541 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 548554545.

It is not an unprimeable number, because it can be changed into a prime (548554541) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1174402 + ... + 1174868.

It is an arithmetic number, because the mean of its divisors is an integer number (9603360).

Almost surely, 2^548554545 is an apocalyptic number.

548554545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

548554545 is an abundant number, since it is smaller than the sum of its proper divisors (680675535).

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

548554545 is a wasteful number, since it uses less digits than its factorization.

548554545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 606 counting only the distinct ones).

The product of its digits is 1600000, while the sum is 45.

The square root of 548554545 is about 23421.2413206474. The cubic root of 548554545 is about 818.6028881619.

The spelling of 548554545 in words is "five hundred forty-eight million, five hundred fifty-four thousand, five hundred forty-five".