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1051525 = 5242061
BaseRepresentation
bin100000000101110000101
31222102102101
410000232011
5232122100
634312101
711636446
oct4005605
91872371
101051525
11659032
12428631
132aa807
141d52cd
1515b86a
hex100b85

1051525 has 6 divisors (see below), whose sum is σ = 1303922. Its totient is φ = 841200.

The previous prime is 1051507. The next prime is 1051543. The reversal of 1051525 is 5251501.

It is an interprime number because it is at equal distance from previous prime (1051507) and next prime (1051543).

It can be written as a sum of positive squares in 3 ways, for example, as 349281 + 702244 = 591^2 + 838^2 .

It is not a de Polignac number, because 1051525 - 27 = 1051397 is a prime.

It is a super-2 number, since 2×10515252 = 2211409651250, which contains 22 as substring.

It is a Duffinian number.

1051525 is a lucky number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 21006 + ... + 21055.

21051525 is an apocalyptic number.

It is an amenable number.

1051525 is a deficient number, since it is larger than the sum of its proper divisors (252397).

1051525 is an equidigital number, since it uses as much as digits as its factorization.

1051525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42071 (or 42066 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1051525 is about 1025.4389304098. The cubic root of 1051525 is about 101.6888183688.

It can be divided in two parts, 1051 and 525, that multiplied together give a triangular number (551775 = T1050).

The spelling of 1051525 in words is "one million, fifty-one thousand, five hundred twenty-five".

Divisors: 1 5 25 42061 210305 1051525