55507770653 has 8 divisors (see below), whose sum is σ = 57438526680. Its totient is φ = 53578127680.

The previous prime is 55507770623. The next prime is 55507770667. The reversal of 55507770653 is 35607770555.

It can be written as a sum of positive squares in 4 ways, for example, as 25381444 + 55482389209 = 5038^2 + 235547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55507770653 - 2²⁰ = 55506722077 is a prime.

It is a super-2 number, since 2×55507770653² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55507770623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176150 + ... + 376887.

It is an arithmetic number, because the mean of its divisors is an integer number (7179815835).

Almost surely, 2^55507770653 is an apocalyptic number.

It is an amenable number.

55507770653 is a deficient number, since it is larger than the sum of its proper divisors (1930756027).

55507770653 is a wasteful number, since it uses less digits than its factorization.

55507770653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556527.

The product of its (nonzero) digits is 3858750, while the sum is 50.

The spelling of 55507770653 in words is "fifty-five billion, five hundred seven million, seven hundred seventy thousand, six hundred fifty-three".