503749953 has 12 divisors (see below), whose sum is σ = 831587328. Its totient is φ = 287857080.

The previous prime is 503749921. The next prime is 503750029. The reversal of 503749953 is 359947305.

503749953 is a `hidden beast` number, since 503 + 7 + 4 + 99 + 53 = 666.

It is not a de Polignac number, because 503749953 - 2⁵ = 503749921 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 503749899 and 503749908.

It is not an unprimeable number, because it can be changed into a prime (503749553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3997953 + ... + 3998078.

It is an arithmetic number, because the mean of its divisors is an integer number (69298944).

Almost surely, 2^503749953 is an apocalyptic number.

It is an amenable number.

503749953 is a deficient number, since it is larger than the sum of its proper divisors (327837375).

503749953 is a wasteful number, since it uses less digits than its factorization.

503749953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996044 (or 7996041 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 45.

The square root of 503749953 is about 22444.3746404305. The cubic root of 503749953 is about 795.6798124916.

The spelling of 503749953 in words is "five hundred three million, seven hundred forty-nine thousand, nine hundred fifty-three".