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5551010521 = 721071058747
BaseRepresentation
bin1010010101101110…
…11011001011011001
3112022212012112220021
411022313123023121
542332024314041
62314453230441
7254362545100
oct51267331331
915285175807
105551010521
112399445401
1210ab032421
136a6064014
143a9335037
152274e8cd1
hex14addb2d9

5551010521 has 12 divisors (see below), whose sum is σ = 6517652688. Its totient is φ = 4713537192.

The previous prime is 5551010503. The next prime is 5551010533. The reversal of 5551010521 is 1250101555.

It is not a de Polignac number, because 5551010521 - 25 = 5551010489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551016521) 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 11 ways as a sum of consecutive naturals, for example, 524131 + ... + 534616.

It is an arithmetic number, because the mean of its divisors is an integer number (543137724).

Almost surely, 25551010521 is an apocalyptic number.

It is an amenable number.

5551010521 is a deficient number, since it is larger than the sum of its proper divisors (966642167).

5551010521 is a wasteful number, since it uses less digits than its factorization.

5551010521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058868 (or 1058861 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 5551010521 is about 74505.1039929480. The cubic root of 5551010521 is about 1770.6145015425.

The spelling of 5551010521 in words is "five billion, five hundred fifty-one million, ten thousand, five hundred twenty-one".

Divisors: 1 7 49 107 749 5243 1058747 7411229 51878603 113285929 793001503 5551010521