55130025242 has 16 divisors (see below), whose sum is σ = 84864146472. Its totient is φ = 26844391680.

The previous prime is 55130025221. The next prime is 55130025257. The reversal of 55130025242 is 24252003155.

It can be written as a sum of positive squares in 4 ways, for example, as 19521957841 + 35608067401 = 139721^2 + 188701^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557843 + ... + 649190.

Almost surely, 2^55130025242 is an apocalyptic number.

55130025242 is a deficient number, since it is larger than the sum of its proper divisors (29734121230).

55130025242 is a wasteful number, since it uses less digits than its factorization.

55130025242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207633.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 55130025242 its reverse (24252003155), we get a palindrome (79382028397).

The spelling of 55130025242 in words is "fifty-five billion, one hundred thirty million, twenty-five thousand, two hundred forty-two".