548407540 has 12 divisors (see below), whose sum is σ = 1151655876. Its totient is φ = 219363008.

The previous prime is 548407511. The next prime is 548407547. The reversal of 548407540 is 45704845.

It can be written as a sum of positive squares in 2 ways, for example, as 93779856 + 454627684 = 9684^2 + 21322^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 548407540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548407547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13710169 + ... + 13710208.

It is an arithmetic number, because the mean of its divisors is an integer number (95971323).

Almost surely, 2^548407540 is an apocalyptic number.

It is an amenable number.

548407540 is an abundant number, since it is smaller than the sum of its proper divisors (603248336).

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

548407540 is a wasteful number, since it uses less digits than its factorization.

548407540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27420386 (or 27420384 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 548407540 is about 23418.1028266595. The cubic root of 548407540 is about 818.5297568936.

The spelling of 548407540 in words is "five hundred forty-eight million, four hundred seven thousand, five hundred forty".