555000506 has 4 divisors (see below), whose sum is σ = 832500762. Its totient is φ = 277500252.

The previous prime is 555000503. The next prime is 555000553. The reversal of 555000506 is 605000555.

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

It can be written as a sum of positive squares in only one way, i.e., 514155625 + 40844881 = 22675^2 + 6391^2 .

It is not an unprimeable number, because it can be changed into a prime (555000503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138750125 + ... + 138750128.

Almost surely, 2^555000506 is an apocalyptic number.

555000506 is a deficient number, since it is larger than the sum of its proper divisors (277500256).

555000506 is a wasteful number, since it uses less digits than its factorization.

555000506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277500255.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 555000506 is about 23558.4487180290. The cubic root of 555000506 is about 821.7968262348.

The spelling of 555000506 in words is "five hundred fifty-five million, five hundred six", and thus it is an aban number.