53303303531 has 4 divisors (see below), whose sum is σ = 56438791992. Its totient is φ = 50167815072.

The previous prime is 53303303507. The next prime is 53303303539. The reversal of 53303303531 is 13530330335.

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

It is a cyclic number.

It is not a de Polignac number, because 53303303531 - 2¹⁸ = 53303041387 is a prime.

It is a super-2 number, since 2×53303303531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53303303494 and 53303303503.

It is not an unprimeable number, because it can be changed into a prime (53303303539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567744205 + ... + 1567744238.

It is an arithmetic number, because the mean of its divisors is an integer number (14109697998).

Almost surely, 2^53303303531 is an apocalyptic number.

53303303531 is a deficient number, since it is larger than the sum of its proper divisors (3135488461).

53303303531 is a wasteful number, since it uses less digits than its factorization.

53303303531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135488460.

The product of its (nonzero) digits is 18225, while the sum is 29.

Adding to 53303303531 its reverse (13530330335), we get a palindrome (66833633866).

The spelling of 53303303531 in words is "fifty-three billion, three hundred three million, three hundred three thousand, five hundred thirty-one".