55535416440551 has 4 divisors (see below), whose sum is σ = 57450430800600. Its totient is φ = 53620402080504.

The previous prime is 55535416440527. The next prime is 55535416440563. The reversal of 55535416440551 is 15504461453555.

55535416440551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55535416440551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55535416440493 and 55535416440502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55535416440151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957507179981 + ... + 957507180038.

It is an arithmetic number, because the mean of its divisors is an integer number (14362607700150).

Almost surely, 2^{55535416440551} is an apocalyptic number.

55535416440551 is a deficient number, since it is larger than the sum of its proper divisors (1915014360049).

55535416440551 is a wasteful number, since it uses less digits than its factorization.

55535416440551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915014360048.

The product of its (nonzero) digits is 18000000, while the sum is 53.

The spelling of 55535416440551 in words is "fifty-five trillion, five hundred thirty-five billion, four hundred sixteen million, four hundred forty thousand, five hundred fifty-one".