55230132442 has 16 divisors (see below), whose sum is σ = 83598095592. Its totient is φ = 27364216320.

The previous prime is 55230132421. The next prime is 55230132443. The reversal of 55230132442 is 24423103255.

It can be written as a sum of positive squares in 4 ways, for example, as 22055517121 + 33174615321 = 148511^2 + 182139^2 .

It is not an unprimeable number, because it can be changed into a prime (55230132443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012342 + ... + 1065502.

Almost surely, 2^55230132442 is an apocalyptic number.

55230132442 is a deficient number, since it is larger than the sum of its proper divisors (28367963150).

55230132442 is a wasteful number, since it uses less digits than its factorization.

55230132442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57873.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 55230132442 its reverse (24423103255), we get a palindrome (79653235697).

The spelling of 55230132442 in words is "fifty-five billion, two hundred thirty million, one hundred thirty-two thousand, four hundred forty-two".