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2057725 = 52531553
BaseRepresentation
bin111110110010111111101
310212112200001
413312113331
51011321400
6112034301
723330125
oct7662775
93775601
102057725
111185aaa
12832991
135707b7
143b7c85
152a9a6a
hex1f65fd

2057725 has 12 divisors (see below), whose sum is σ = 2601396. Its totient is φ = 1614080.

The previous prime is 2057723. The next prime is 2057729. The reversal of 2057725 is 5277502.

It can be written as a sum of positive squares in 6 ways, for example, as 133956 + 1923769 = 366^2 + 1387^2 .

It is not a de Polignac number, because 2057725 - 21 = 2057723 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2057693 and 2057702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057723) 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, 549 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (216783).

22057725 is an apocalyptic number.

2057725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2057725 is a deficient number, since it is larger than the sum of its proper divisors (543671).

2057725 is a wasteful number, since it uses less digits than its factorization.

2057725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 2057725 is about 1434.4772567036. The cubic root of 2057725 is about 127.1927756204.

It can be divided in two parts, 20577 and 25, that added together give a palindrome (20602).

The spelling of 2057725 in words is "two million, fifty-seven thousand, seven hundred twenty-five".

Divisors: 1 5 25 53 265 1325 1553 7765 38825 82309 411545 2057725