53002803 has 8 divisors (see below), whose sum is σ = 80766208. Its totient is φ = 30287304.

The previous prime is 53002783. The next prime is 53002811. The reversal of 53002803 is 30820035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53002803 - 2⁶ = 53002739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2523943 = 53002803 / (5 + 3 + 0 + 0 + 2 + 8 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53002803.

It is not an unprimeable number, because it can be changed into a prime (53002813) 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 7 ways as a sum of consecutive naturals, for example, 1261951 + ... + 1261992.

It is an arithmetic number, because the mean of its divisors is an integer number (10095776).

Almost surely, 2^53002803 is an apocalyptic number.

53002803 is a deficient number, since it is larger than the sum of its proper divisors (27763405).

53002803 is a wasteful number, since it uses less digits than its factorization.

53002803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523953.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53002803 is about 7280.3023975656. The cubic root of 53002803 is about 375.6351972355.

Adding to 53002803 its reverse (30820035), we get a palindrome (83822838).

The spelling of 53002803 in words is "fifty-three million, two thousand, eight hundred three".