505250739 has 48 divisors (see below), whose sum is σ = 859827904. Its totient is φ = 279936000.

The previous prime is 505250737. The next prime is 505250747. The reversal of 505250739 is 937052505.

It is not a de Polignac number, because 505250739 - 2¹ = 505250737 is a prime.

It is a super-2 number, since 2×505250739² = 510556618520092242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505250737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279639 + ... + 281439.

Almost surely, 2^505250739 is an apocalyptic number.

505250739 is a deficient number, since it is larger than the sum of its proper divisors (354577165).

505250739 is a wasteful number, since it uses less digits than its factorization.

505250739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 505250739 is about 22477.7832314488. The cubic root of 505250739 is about 796.4691996323.

The spelling of 505250739 in words is "five hundred five million, two hundred fifty thousand, seven hundred thirty-nine".