538383507 has 4 divisors (see below), whose sum is σ = 717844680. Its totient is φ = 358922336.

The previous prime is 538383497. The next prime is 538383509. The reversal of 538383507 is 705383835.

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

It is a cyclic number.

It is not a de Polignac number, because 538383507 - 2¹⁵ = 538350739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538383509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89730582 + ... + 89730587.

It is an arithmetic number, because the mean of its divisors is an integer number (179461170).

Almost surely, 2^538383507 is an apocalyptic number.

538383507 is a deficient number, since it is larger than the sum of its proper divisors (179461173).

538383507 is a wasteful number, since it uses less digits than its factorization.

538383507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179461172.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 538383507 is about 23203.0926171491. The cubic root of 538383507 is about 813.5119104024.

The spelling of 538383507 in words is "five hundred thirty-eight million, three hundred eighty-three thousand, five hundred seven".