507538 has 4 divisors (see below), whose sum is σ = 761310. Its totient is φ = 253768.

The previous prime is 507523. The next prime is 507557. The reversal of 507538 is 835705.

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., 375769 + 131769 = 613^2 + 363^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126883 + ... + 126886.

2⁵⁰⁷⁵³⁸ is an apocalyptic number.

507538 is a deficient number, since it is larger than the sum of its proper divisors (253772).

507538 is a wasteful number, since it uses less digits than its factorization.

507538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253771.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 507538 is about 712.4170127110. The cubic root of 507538 is about 79.7669257812.

The spelling of 507538 in words is "five hundred seven thousand, five hundred thirty-eight".