55531122040545 has 32 divisors (see below), whose sum is σ = 91017622975104. Its totient is φ = 28894001241600.

The previous prime is 55531122040501. The next prime is 55531122040567. The reversal of 55531122040545 is 54504022113555.

It is a happy number.

It is not a de Polignac number, because 55531122040545 - 2⁹ = 55531122040033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55531122040497 and 55531122040506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91634959 + ... + 92238971.

It is an arithmetic number, because the mean of its divisors is an integer number (2844300717972).

Almost surely, 2^{55531122040545} is an apocalyptic number.

It is an amenable number.

55531122040545 is a deficient number, since it is larger than the sum of its proper divisors (35486500934559).

55531122040545 is a wasteful number, since it uses less digits than its factorization.

55531122040545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753553.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 55531122040545 in words is "fifty-five trillion, five hundred thirty-one billion, one hundred twenty-two million, forty thousand, five hundred forty-five".