55331403343623 has 20 divisors (see below), whose sum is σ = 90169694339208. Its totient is φ = 33534183844080.

The previous prime is 55331403343591. The next prime is 55331403343639. The reversal of 55331403343623 is 32634330413355.

55331403343623 is a `hidden beast` number, since 5 + 5 + 3 + 3 + 14 + 0 + 3 + 3 + 4 + 3 + 623 = 666.

It is not a de Polignac number, because 55331403343623 - 2⁵ = 55331403343591 is a prime.

It is a super-2 number, since 2×55331403343623² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55331403343673) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31050169336 + ... + 31050171117.

Almost surely, 2^{55331403343623} is an apocalyptic number.

55331403343623 is a deficient number, since it is larger than the sum of its proper divisors (34838290995585).

55331403343623 is a wasteful number, since it uses less digits than its factorization.

55331403343623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62100340476 (or 62100340467 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 45.

Adding to 55331403343623 its reverse (32634330413355), we get a palindrome (87965733756978).

The spelling of 55331403343623 in words is "fifty-five trillion, three hundred thirty-one billion, four hundred three million, three hundred forty-three thousand, six hundred twenty-three".