548420545 has 4 divisors (see below), whose sum is σ = 658104660. Its totient is φ = 438736432.

The previous prime is 548420519. The next prime is 548420557. The reversal of 548420545 is 545024845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261016336 + 287404209 = 16156^2 + 16953^2 .

It is a cyclic number.

It is not a de Polignac number, because 548420545 - 2¹⁷ = 548289473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54842050 + ... + 54842059.

It is an arithmetic number, because the mean of its divisors is an integer number (164526165).

Almost surely, 2^548420545 is an apocalyptic number.

It is an amenable number.

548420545 is a deficient number, since it is larger than the sum of its proper divisors (109684115).

548420545 is a wasteful number, since it uses less digits than its factorization.

548420545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109684114.

The product of its (nonzero) digits is 128000, while the sum is 37.

The square root of 548420545 is about 23418.3804948165. The cubic root of 548420545 is about 818.5362270790.

The spelling of 548420545 in words is "five hundred forty-eight million, four hundred twenty thousand, five hundred forty-five".