53211303 has 16 divisors (see below), whose sum is σ = 79092960. Its totient is φ = 35356608.

The previous prime is 53211299. The next prime is 53211307. The reversal of 53211303 is 30311235.

53211303 is a `hidden beast` number, since 532 + 1 + 130 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (53211299) and next prime (53211307).

It is not a de Polignac number, because 53211303 - 2² = 53211299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53211307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5451 + ... + 11667.

It is an arithmetic number, because the mean of its divisors is an integer number (4943310).

Almost surely, 2^53211303 is an apocalyptic number.

53211303 is a deficient number, since it is larger than the sum of its proper divisors (25881657).

53211303 is a wasteful number, since it uses less digits than its factorization.

53211303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543 (or 6537 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 53211303 is about 7294.6078030282. The cubic root of 53211303 is about 376.1271049644.

Adding to 53211303 its reverse (30311235), we get a palindrome (83522538).

The spelling of 53211303 in words is "fifty-three million, two hundred eleven thousand, three hundred three".