53453252531 has 4 divisors (see below), whose sum is σ = 61089431472. Its totient is φ = 45817073592.

The previous prime is 53453252509. The next prime is 53453252543. The reversal of 53453252531 is 13525235435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13525235435 = 5 ⋅2705047087.

It is a cyclic number.

It is not a de Polignac number, because 53453252531 - 2¹⁸ = 53452990387 is a prime.

It is a super-2 number, since 2×53453252531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53453252431) 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, 3818089460 + ... + 3818089473.

It is an arithmetic number, because the mean of its divisors is an integer number (15272357868).

Almost surely, 2^53453252531 is an apocalyptic number.

53453252531 is a deficient number, since it is larger than the sum of its proper divisors (7636178941).

53453252531 is an equidigital number, since it uses as much as digits as its factorization.

53453252531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636178940.

The product of its digits is 270000, while the sum is 38.

Adding to 53453252531 its reverse (13525235435), we get a palindrome (66978487966).

The spelling of 53453252531 in words is "fifty-three billion, four hundred fifty-three million, two hundred fifty-two thousand, five hundred thirty-one".