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505003000525 = 52108677185873
BaseRepresentation
bin1110101100101001000…
…01100100001011001101
31210021111112020110202021
413112110201210023031
531233221232004100
61023554542530141
751325305451612
oct7262441441315
91707445213667
10505003000525
11185197034881
1281a58596951
13388107ba30a
141a629866509
15d209e7da1a
hex75948642cd

505003000525 has 12 divisors (see below), whose sum is σ = 626212851732. Its totient is φ = 403996509440.

The previous prime is 505003000511. The next prime is 505003000549. The reversal of 505003000525 is 525000300505.

It can be written as a sum of positive squares in 6 ways, for example, as 19018340649 + 485984659876 = 137907^2 + 697126^2 .

It is not a de Polignac number, because 505003000525 - 29 = 505003000013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505003000525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2623989 + ... + 2809861.

It is an arithmetic number, because the mean of its divisors is an integer number (52184404311).

Almost surely, 2505003000525 is an apocalyptic number.

It is an amenable number.

505003000525 is a deficient number, since it is larger than the sum of its proper divisors (121209851207).

505003000525 is a wasteful number, since it uses less digits than its factorization.

505003000525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294560 (or 294555 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The spelling of 505003000525 in words is "five hundred five billion, three million, five hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 25 108677 185873 543385 929365 2716925 4646825 20200120021 101000600105 505003000525