504648538 has 4 divisors (see below), whose sum is σ = 756972810. Its totient is φ = 252324268.

The previous prime is 504648511. The next prime is 504648581. The reversal of 504648538 is 835846405.

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., 501177769 + 3470769 = 22387^2 + 1863^2 .

It is a junction number, because it is equal to n+sod(n) for n = 504648494 and 504648503.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126162133 + ... + 126162136.

Almost surely, 2^504648538 is an apocalyptic number.

504648538 is a deficient number, since it is larger than the sum of its proper divisors (252324272).

504648538 is a wasteful number, since it uses less digits than its factorization.

504648538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252324271.

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 504648538 is about 22464.3837663088. The cubic root of 504648538 is about 796.1526404837.

The spelling of 504648538 in words is "five hundred four million, six hundred forty-eight thousand, five hundred thirty-eight".