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1055025 = 3452521
BaseRepresentation
bin100000001100100110001
31222121020000
410001210301
5232230100
634340213
711652606
oct4014461
91877200
101055025
11660724
1242a669
132ac29a
141d66ad
1515c900
hex101931

1055025 has 30 divisors (see below), whose sum is σ = 1958022. Its totient is φ = 561600.

The previous prime is 1055017. The next prime is 1055039. The reversal of 1055025 is 5205501.

It can be written as a sum of positive squares in 3 ways, for example, as 20736 + 1034289 = 144^2 + 1017^2 .

It is not a de Polignac number, because 1055025 - 23 = 1055017 is a prime.

It is a super-2 number, since 2×10550252 = 2226155501250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1054989 and 1055007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1765 + ... + 2285.

21055025 is an apocalyptic number.

1055025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055025 is a deficient number, since it is larger than the sum of its proper divisors (902997).

1055025 is an equidigital number, since it uses as much as digits as its factorization.

1055025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 1055025 is about 1027.1440989462. The cubic root of 1055025 is about 101.8015171348.

The spelling of 1055025 in words is "one million, fifty-five thousand, twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 135 225 405 521 675 1563 2025 2605 4689 7815 13025 14067 23445 39075 42201 70335 117225 211005 351675 1055025