53540515453 has 4 divisors (see below), whose sum is σ = 53622507708. Its totient is φ = 53458523200.

The previous prime is 53540515451. The next prime is 53540515499. The reversal of 53540515453 is 35451504535.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21848682969 + 31691832484 = 147813^2 + 178022^2 .

It is a cyclic number.

It is not a de Polignac number, because 53540515453 - 2¹ = 53540515451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53540515451) 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, 40995148 + ... + 40996453.

It is an arithmetic number, because the mean of its divisors is an integer number (13405626927).

Almost surely, 2^53540515453 is an apocalyptic number.

It is an amenable number.

53540515453 is a deficient number, since it is larger than the sum of its proper divisors (81992255).

53540515453 is an equidigital number, since it uses as much as digits as its factorization.

53540515453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81992254.

The product of its (nonzero) digits is 450000, while the sum is 40.

The spelling of 53540515453 in words is "fifty-three billion, five hundred forty million, five hundred fifteen thousand, four hundred fifty-three".