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55244521253 = 378231181399
BaseRepresentation
bin110011011100110101…
…000111111100100101
312021121002022110021202
4303130311013330211
51401120044140003
641213505452245
73664003453115
oct633465077445
9167532273252
1055244521253
112147a101539
12a859341085
13529547333c
142961083045
151684eec088
hexcdcd47f25

55244521253 has 8 divisors (see below), whose sum is σ = 56744822400. Its totient is φ = 53744599440.

The previous prime is 55244521249. The next prime is 55244521301. The reversal of 55244521253 is 35212544255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55244521253 - 22 = 55244521249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55244521753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213848 + ... + 395246.

It is an arithmetic number, because the mean of its divisors is an integer number (7093102800).

Almost surely, 255244521253 is an apocalyptic number.

It is an amenable number.

55244521253 is a deficient number, since it is larger than the sum of its proper divisors (1500301147).

55244521253 is a wasteful number, since it uses less digits than its factorization.

55244521253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189667.

The product of its digits is 240000, while the sum is 38.

The spelling of 55244521253 in words is "fifty-five billion, two hundred forty-four million, five hundred twenty-one thousand, two hundred fifty-three".

Divisors: 1 37 8231 181399 304547 6711763 1493095169 55244521253