55212331023 has 16 divisors (see below), whose sum is σ = 82546472800. Its totient is φ = 36470528640.

The previous prime is 55212331019. The next prime is 55212331037. The reversal of 55212331023 is 32013321255.

It is a happy number.

55212331023 is a `hidden beast` number, since 5 + 521 + 2 + 33 + 102 + 3 = 666.

55212331023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55212331023 - 2² = 55212331019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55212311023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9377338 + ... + 9383223.

It is an arithmetic number, because the mean of its divisors is an integer number (5159154550).

Almost surely, 2^55212331023 is an apocalyptic number.

55212331023 is a deficient number, since it is larger than the sum of its proper divisors (27334141777).

55212331023 is a wasteful number, since it uses less digits than its factorization.

55212331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760679 (or 18760673 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 55212331023 its reverse (32013321255), we get a palindrome (87225652278).

The spelling of 55212331023 in words is "fifty-five billion, two hundred twelve million, three hundred thirty-one thousand, twenty-three".