55641231522 has 12 divisors (see below), whose sum is σ = 120556001670. Its totient is φ = 18547077168.

The previous prime is 55641231419. The next prime is 55641231533. The reversal of 55641231522 is 22513214655.

55641231522 is a `hidden beast` number, since 5 + 5 + 6 + 4 + 123 + 1 + 522 = 666.

55641231522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37904585481 + 17736646041 = 194691^2 + 133179^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1545589747 + ... + 1545589782.

Almost surely, 2^55641231522 is an apocalyptic number.

55641231522 is an abundant number, since it is smaller than the sum of its proper divisors (64914770148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55641231522 is a wasteful number, since it uses less digits than its factorization.

55641231522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091179537 (or 3091179534 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 55641231522 in words is "fifty-five billion, six hundred forty-one million, two hundred thirty-one thousand, five hundred twenty-two".