505550126 has 4 divisors (see below), whose sum is σ = 758325192. Its totient is φ = 252775062.

The previous prime is 505550099. The next prime is 505550153. The reversal of 505550126 is 621055505.

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

It is an interprime number because it is at equal distance from previous prime (505550099) and next prime (505550153).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126387530 + ... + 126387533.

It is an arithmetic number, because the mean of its divisors is an integer number (189581298).

Almost surely, 2^505550126 is an apocalyptic number.

505550126 is a deficient number, since it is larger than the sum of its proper divisors (252775066).

505550126 is a wasteful number, since it uses less digits than its factorization.

505550126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252775065.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 505550126 is about 22484.4418654322. The cubic root of 505550126 is about 796.6264848657.

The spelling of 505550126 in words is "five hundred five million, five hundred fifty thousand, one hundred twenty-six".