503886649 has 6 divisors (see below), whose sum is σ = 586153914. Its totient is φ = 431902800.

The previous prime is 503886623. The next prime is 503886659. The reversal of 503886649 is 946688305.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 483120400 + 20766249 = 21980^2 + 4557^2 .

It is not a de Polignac number, because 503886649 - 2⁷ = 503886521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 10283401 = 503886649 / (5 + 0 + 3 + 8 + 8 + 6 + 6 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503886659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5141652 + ... + 5141749.

It is an arithmetic number, because the mean of its divisors is an integer number (97692319).

Almost surely, 2^503886649 is an apocalyptic number.

It is an amenable number.

503886649 is a deficient number, since it is larger than the sum of its proper divisors (82267265).

503886649 is a wasteful number, since it uses less digits than its factorization.

503886649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10283415 (or 10283408 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 503886649 is about 22447.4196512650. The cubic root of 503886649 is about 795.7517770382.

The spelling of 503886649 in words is "five hundred three million, eight hundred eighty-six thousand, six hundred forty-nine".