55047013642 has 16 divisors (see below), whose sum is σ = 88328930760. Its totient is φ = 25637419008.

The previous prime is 55047013543. The next prime is 55047013657. The reversal of 55047013642 is 24631074055.

It is a Cunningham number, because it is equal to 234621²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 55047013641 + 1 = 234621^2 + 1^2 .

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, 8342217 + ... + 8348812.

Almost surely, 2^55047013642 is an apocalyptic number.

55047013642 is a deficient number, since it is larger than the sum of its proper divisors (33281917118).

55047013642 is a wasteful number, since it uses less digits than its factorization.

55047013642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16691145.

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 55047013642 its reverse (24631074055), we get a palindrome (79678087697).

The spelling of 55047013642 in words is "fifty-five billion, forty-seven million, thirteen thousand, six hundred forty-two".