55400449130 has 64 divisors (see below), whose sum is σ = 108280882080. Its totient is φ = 20286775296.

The previous prime is 55400449103. The next prime is 55400449219. The reversal of 55400449130 is 3194400455.

It is a Cunningham number, because it is equal to 235373²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 9668198929 + 45732250201 = 98327^2 + 213851^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9735326 + ... + 9741014.

Almost surely, 2^55400449130 is an apocalyptic number.

55400449130 is a deficient number, since it is larger than the sum of its proper divisors (52880432950).

55400449130 is a wasteful number, since it uses less digits than its factorization.

55400449130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 55400449130 its reverse (3194400455), we get a palindrome (58594849585).

The spelling of 55400449130 in words is "fifty-five billion, four hundred million, four hundred forty-nine thousand, one hundred thirty".