555681380 has 48 divisors (see below), whose sum is σ = 1289312640. Its totient is φ = 200099328.

The previous prime is 555681377. The next prime is 555681419. The reversal of 555681380 is 83186555.

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, 27710 + ... + 43349.

It is an arithmetic number, because the mean of its divisors is an integer number (26860680).

Almost surely, 2^555681380 is an apocalyptic number.

It is an amenable number.

555681380 is an abundant number, since it is smaller than the sum of its proper divisors (733631260).

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

555681380 is a wasteful number, since it uses less digits than its factorization.

555681380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71108 (or 71106 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 555681380 is about 23572.8950279765. The cubic root of 555681380 is about 822.1327487116.

The spelling of 555681380 in words is "five hundred fifty-five million, six hundred eighty-one thousand, three hundred eighty".