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30055552525 = 521202222101
BaseRepresentation
bin11011111111011100…
…110101011000001101
32212120121211021010001
4123333130311120031
5443023210140100
621450214444301
72112542660365
oct337734653015
985517737101
1030055552525
1111823637509
1259a9663691
132aaca4590b
1416519899a5
15bad94dd6a
hex6ff73560d

30055552525 has 6 divisors (see below), whose sum is σ = 37268885162. Its totient is φ = 24044442000.

The previous prime is 30055552523. The next prime is 30055552531. The reversal of 30055552525 is 52525555003.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6058754244 + 23996798281 = 77838^2 + 154909^2 .

It is not a de Polignac number, because 30055552525 - 21 = 30055552523 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 (30055552523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 601111026 + ... + 601111075.

Almost surely, 230055552525 is an apocalyptic number.

It is an amenable number.

30055552525 is a deficient number, since it is larger than the sum of its proper divisors (7213332637).

30055552525 is a wasteful number, since it uses less digits than its factorization.

30055552525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202222111 (or 1202222106 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 37.

The spelling of 30055552525 in words is "thirty billion, fifty-five million, five hundred fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 1202222101 6011110505 30055552525