53310212531 has 4 divisors (see below), whose sum is σ = 53729978112. Its totient is φ = 52890446952.

The previous prime is 53310212491. The next prime is 53310212533. The reversal of 53310212531 is 13521201335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53310212531 is a prime.

It is a super-2 number, since 2×53310212531² (a number of 22 digits) contains 22 as substring.

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 53310212531.

It is not an unprimeable number, because it can be changed into a prime (53310212533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209882600 + ... + 209882853.

It is an arithmetic number, because the mean of its divisors is an integer number (13432494528).

Almost surely, 2^53310212531 is an apocalyptic number.

53310212531 is a deficient number, since it is larger than the sum of its proper divisors (419765581).

53310212531 is a wasteful number, since it uses less digits than its factorization.

53310212531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419765580.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 53310212531 its reverse (13521201335), we get a palindrome (66831413866).

The spelling of 53310212531 in words is "fifty-three billion, three hundred ten million, two hundred twelve thousand, five hundred thirty-one".