555140656 has 80 divisors (see below), whose sum is σ = 1283542848. Its totient is φ = 227635200.

The previous prime is 555140647. The next prime is 555140657. The reversal of 555140656 is 656041555.

It is a super-2 number, since 2×555140656² = 616362295888220672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (555140657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242236 + ... + 244516.

Almost surely, 2^555140656 is an apocalyptic number.

555140656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555140656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641771424).

555140656 is an abundant number, since it is smaller than the sum of its proper divisors (728402192).

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

555140656 is a wasteful number, since it uses less digits than its factorization.

555140656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390 (or 2384 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 555140656 is about 23561.4230470063. The cubic root of 555140656 is about 821.8659944191.

The spelling of 555140656 in words is "five hundred fifty-five million, one hundred forty thousand, six hundred fifty-six".