55021102423 has 16 divisors (see below), whose sum is σ = 63197245440. Its totient is φ = 46924186176.

The previous prime is 55021102417. The next prime is 55021102439. The reversal of 55021102423 is 32420112055.

It is not a de Polignac number, because 55021102423 - 2¹³ = 55021094231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55021102523) 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, 3249363 + ... + 3266251.

It is an arithmetic number, because the mean of its divisors is an integer number (3949827840).

Almost surely, 2^55021102423 is an apocalyptic number.

55021102423 is a deficient number, since it is larger than the sum of its proper divisors (8176143017).

55021102423 is a wasteful number, since it uses less digits than its factorization.

55021102423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19206.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 55021102423 its reverse (32420112055), we get a palindrome (87441214478).

The spelling of 55021102423 in words is "fifty-five billion, twenty-one million, one hundred two thousand, four hundred twenty-three".