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5055155521 = 131790921713
BaseRepresentation
bin1001011010100111…
…11000110101000001
3111001022011111201021
410231103320311001
540323104434041
62153341305441
7236162053513
oct45523706501
914038144637
105055155521
11216455a189
12b90b65281
136274007b0
1435d53bbb3
151e8bedcd1
hex12d4f8d41

5055155521 has 8 divisors (see below), whose sum is σ = 5444568360. Its totient is φ = 4665821952.

The previous prime is 5055155507. The next prime is 5055155527. The reversal of 5055155521 is 1255515505.

It can be written as a sum of positive squares in 4 ways, for example, as 8473921 + 5046681600 = 2911^2 + 71040^2 .

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 5055155521 - 223 = 5046766913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5055155527) 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, 221961 + ... + 243673.

It is an arithmetic number, because the mean of its divisors is an integer number (680571045).

Almost surely, 25055155521 is an apocalyptic number.

It is an amenable number.

5055155521 is a deficient number, since it is larger than the sum of its proper divisors (389412839).

5055155521 is a wasteful number, since it uses less digits than its factorization.

5055155521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39635.

The product of its (nonzero) digits is 31250, while the sum is 34.

The square root of 5055155521 is about 71099.6168836373. The cubic root of 5055155521 is about 1716.2406084056.

The spelling of 5055155521 in words is "five billion, fifty-five million, one hundred fifty-five thousand, five hundred twenty-one".

Divisors: 1 13 17909 21713 232817 282269 388858117 5055155521