605551540 has 48 divisors (see below), whose sum is σ = 1390011840. Its totient is φ = 219764480.

The previous prime is 605551537. The next prime is 605551601. The reversal of 605551540 is 45155506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121416 + ... + 126304.

It is an arithmetic number, because the mean of its divisors is an integer number (28958580).

Almost surely, 2^605551540 is an apocalyptic number.

It is an amenable number.

605551540 is an abundant number, since it is smaller than the sum of its proper divisors (784460300).

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

605551540 is a wasteful number, since it uses less digits than its factorization.

605551540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472 (or 5470 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 605551540 is about 24607.9568432651. The cubic root of 605551540 is about 846.0259890263.

The spelling of 605551540 in words is "six hundred five million, five hundred fifty-one thousand, five hundred forty".