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55124025423 = 318374675141
BaseRepresentation
bin110011010101101001…
…011110000001001111
312021021200120122002020
4303111221132001033
51400343222303143
641153523101223
73661011325245
oct632551360117
9167250518066
1055124025423
1121418091205
12a824b11813
13527650482c
14294d078795
151679649883
hexcd5a5e04f

55124025423 has 4 divisors (see below), whose sum is σ = 73498700568. Its totient is φ = 36749350280.

The previous prime is 55124025409. The next prime is 55124025431. The reversal of 55124025423 is 32452042155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55124025423 - 217 = 55123894351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124025493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9187337568 + ... + 9187337573.

It is an arithmetic number, because the mean of its divisors is an integer number (18374675142).

Almost surely, 255124025423 is an apocalyptic number.

55124025423 is a deficient number, since it is larger than the sum of its proper divisors (18374675145).

55124025423 is a wasteful number, since it uses less digits than its factorization.

55124025423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18374675144.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 55124025423 its reverse (32452042155), we get a palindrome (87576067578).

The spelling of 55124025423 in words is "fifty-five billion, one hundred twenty-four million, twenty-five thousand, four hundred twenty-three".

Divisors: 1 3 18374675141 55124025423