53606445231561 has 16 divisors (see below), whose sum is σ = 71564280528000. Its totient is φ = 35693147726208.

The previous prime is 53606445231553. The next prime is 53606445231571. The reversal of 53606445231561 is 16513254460635.

It is a happy number.

It is not a de Polignac number, because 53606445231561 - 2³ = 53606445231553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53606445231571) 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, 4291215 + ... + 11208363.

It is an arithmetic number, because the mean of its divisors is an integer number (4472767533000).

Almost surely, 2^{53606445231561} is an apocalyptic number.

It is an amenable number.

53606445231561 is a deficient number, since it is larger than the sum of its proper divisors (17957835296439).

53606445231561 is a wasteful number, since it uses less digits than its factorization.

53606445231561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920368.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 53606445231561 in words is "fifty-three trillion, six hundred six billion, four hundred forty-five million, two hundred thirty-one thousand, five hundred sixty-one".