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52540204525 = 5210919280809
BaseRepresentation
bin110000111011101000…
…111110010111101101
312000121121122221010221
4300323220332113231
51330100243021100
640045302531341
73536665240564
oct607350762755
9160547587127
1052540204525
1120311637336
12a223736b51
134c54107b23
142785c48bdb
1515778b301a
hexc3ba3e5ed

52540204525 has 12 divisors (see below), whose sum is σ = 65747562100. Its totient is φ = 41646545280.

The previous prime is 52540204469. The next prime is 52540204529.

52540204525 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 2291153956 + 50249050569 = 47866^2 + 224163^2 .

It is not a de Polignac number, because 52540204525 - 215 = 52540171757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52540204529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9637680 + ... + 9643129.

Almost surely, 252540204525 is an apocalyptic number.

It is an amenable number.

52540204525 is a deficient number, since it is larger than the sum of its proper divisors (13207357575).

52540204525 is a wasteful number, since it uses less digits than its factorization.

52540204525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19280928 (or 19280923 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 34.

The spelling of 52540204525 in words is "fifty-two billion, five hundred forty million, two hundred four thousand, five hundred twenty-five".

Divisors: 1 5 25 109 545 2725 19280809 96404045 482020225 2101608181 10508040905 52540204525