53013453531 has 16 divisors (see below), whose sum is σ = 75529159200. Its totient is φ = 32958171648.

The previous prime is 53013453527. The next prime is 53013453541. The reversal of 53013453531 is 13535431035.

It is a happy number.

It is not a de Polignac number, because 53013453531 - 2² = 53013453527 is a prime.

It is a super-2 number, since 2×53013453531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53013453492 and 53013453501.

It is not an unprimeable number, because it can be changed into a prime (53013453541) 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, 4762696 + ... + 4773813.

It is an arithmetic number, because the mean of its divisors is an integer number (4720572450).

Almost surely, 2^53013453531 is an apocalyptic number.

53013453531 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53013453531 is a deficient number, since it is larger than the sum of its proper divisors (22515705669).

53013453531 is a wasteful number, since it uses less digits than its factorization.

53013453531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9536638.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 53013453531 its reverse (13535431035), we get a palindrome (66548884566).

The spelling of 53013453531 in words is "fifty-three billion, thirteen million, four hundred fifty-three thousand, five hundred thirty-one".