55435788623 has 2 divisors, whose sum is σ = 55435788624. Its totient is φ = 55435788622.

The previous prime is 55435788619. The next prime is 55435788637. The reversal of 55435788623 is 32688753455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55435788623 - 2² = 55435788619 is a prime.

It is a super-2 number, since 2×55435788623² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55435788823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27717894311 + 27717894312.

It is an arithmetic number, because the mean of its divisors is an integer number (27717894312).

Almost surely, 2^55435788623 is an apocalyptic number.

55435788623 is a deficient number, since it is larger than the sum of its proper divisors (1).

55435788623 is an equidigital number, since it uses as much as digits as its factorization.

55435788623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192000, while the sum is 56.

The spelling of 55435788623 in words is "fifty-five billion, four hundred thirty-five million, seven hundred eighty-eight thousand, six hundred twenty-three".