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5205135925 = 521118927767
BaseRepresentation
bin1001101100100000…
…00001001000110101
3111102202101022011001
410312100001020311
541130003322200
62220300043301
7242662632253
oct46620011065
914382338131
105205135925
112231188730
121013233531
1364c4c37b2
1437541d5d3
15206e7776a
hex136401235

5205135925 has 12 divisors (see below), whose sum is σ = 7041129696. Its totient is φ = 3785553200.

The previous prime is 5205135893. The next prime is 5205135953. The reversal of 5205135925 is 5295315025.

It is not a de Polignac number, because 5205135925 - 25 = 5205135893 is a prime.

It is a Duffinian number.

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, 9463609 + ... + 9464158.

It is an arithmetic number, because the mean of its divisors is an integer number (586760808).

Almost surely, 25205135925 is an apocalyptic number.

5205135925 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5205135925 is a deficient number, since it is larger than the sum of its proper divisors (1835993771).

5205135925 is a wasteful number, since it uses less digits than its factorization.

5205135925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18927788 (or 18927783 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 5205135925 is about 72146.6279530790. The cubic root of 5205135925 is about 1733.0483998067.

The spelling of 5205135925 in words is "five billion, two hundred five million, one hundred thirty-five thousand, nine hundred twenty-five".

Divisors: 1 5 11 25 55 275 18927767 94638835 208205437 473194175 1041027185 5205135925