53121604541 has 4 divisors (see below), whose sum is σ = 53122936284. Its totient is φ = 53120272800.

The previous prime is 53121604519. The next prime is 53121604567. The reversal of 53121604541 is 14540612135.

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 25721423641 + 27400180900 = 160379^2 + 165530^2 .

It is a cyclic number.

It is not a de Polignac number, because 53121604541 - 2³⁰ = 52047862717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53121604498 and 53121604507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53121604741) 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, 604130 + ... + 686451.

It is an arithmetic number, because the mean of its divisors is an integer number (13280734071).

Almost surely, 2^53121604541 is an apocalyptic number.

It is an amenable number.

53121604541 is a deficient number, since it is larger than the sum of its proper divisors (1331743).

53121604541 is a wasteful number, since it uses less digits than its factorization.

53121604541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331742.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 53121604541 in words is "fifty-three billion, one hundred twenty-one million, six hundred four thousand, five hundred forty-one".