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530212515525 = 34527118833851
BaseRepresentation
bin1111011011100110010…
…00001110111011000101
31212200120102101112010000
413231303020032323011
532141333400444100
61043324250151513
753210106010110
oct7556310167305
91780512345100
10530212515525
111949531625a0
1286913122599
133acca55c9b4
141b93b98b577
15dbd3239900
hex7b7320eec5

530212515525 has 240 divisors, whose sum is σ = 1226187376128. Its totient is φ = 220041360000.

The previous prime is 530212515509. The next prime is 530212515557. The reversal of 530212515525 is 525515212035.

530212515525 is a `hidden beast` number, since 5 + 3 + 0 + 2 + 125 + 1 + 5 + 525 = 666.

It is not a de Polignac number, because 530212515525 - 24 = 530212515509 is a prime.

It is a super-2 number, since 2×5302125155252 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 530212515525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 137679850 + ... + 137683700.

Almost surely, 2530212515525 is an apocalyptic number.

530212515525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

530212515525 is an abundant number, since it is smaller than the sum of its proper divisors (695974860603).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530212515525 is a wasteful number, since it uses less digits than its factorization.

530212515525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4760 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 530212515525 in words is "five hundred thirty billion, two hundred twelve million, five hundred fifteen thousand, five hundred twenty-five".