505012994 has 4 divisors (see below), whose sum is σ = 757519494. Its totient is φ = 252506496.

The previous prime is 505012891. The next prime is 505012997. The reversal of 505012994 is 499210505.

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., 415956025 + 89056969 = 20395^2 + 9437^2 .

It is not an unprimeable number, because it can be changed into a prime (505012997) by changing a digit.

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, 126253247 + ... + 126253250.

Almost surely, 2^505012994 is an apocalyptic number.

505012994 is a deficient number, since it is larger than the sum of its proper divisors (252506500).

505012994 is a wasteful number, since it uses less digits than its factorization.

505012994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252506499.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 505012994 is about 22472.4941650899. The cubic root of 505012994 is about 796.3442542250.

The spelling of 505012994 in words is "five hundred five million, twelve thousand, nine hundred ninety-four".