505254245 has 4 divisors (see below), whose sum is σ = 606305100. Its totient is φ = 404203392.

The previous prime is 505254241. The next prime is 505254259. The reversal of 505254245 is 542452505.

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

It can be written as a sum of positive squares in 2 ways, for example, as 316768804 + 188485441 = 17798^2 + 13729^2 .

It is a cyclic number.

It is not a de Polignac number, because 505254245 - 2² = 505254241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505254241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50525420 + ... + 50525429.

It is an arithmetic number, because the mean of its divisors is an integer number (151576275).

Almost surely, 2^505254245 is an apocalyptic number.

It is an amenable number.

505254245 is a deficient number, since it is larger than the sum of its proper divisors (101050855).

505254245 is a wasteful number, since it uses less digits than its factorization.

505254245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101050854.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 505254245 is about 22477.8612194310. The cubic root of 505254245 is about 796.4710418955.

The spelling of 505254245 in words is "five hundred five million, two hundred fifty-four thousand, two hundred forty-five".