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BaseRepresentation
bin100110001110010101101
32100122010211
410301302231
5310040100
642502421
713434451
oct4616255
92318124
101252525
1178604a
12504a11
1334b151
14248661
1519b1ba
hex131cad

1252525 has 6 divisors (see below), whose sum is σ = 1553162. Its totient is φ = 1002000.

The previous prime is 1252523. The next prime is 1252579. The reversal of 1252525 is 5252521.

It can be written as a sum of positive squares in 3 ways, for example, as 2601 + 1249924 = 51^2 + 1118^2 .

It is not a de Polignac number, because 1252525 - 21 = 1252523 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1252525 is a modest number, since divided by 2525 gives 125 as remainder.

1252525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1252496 and 1252505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25026 + ... + 25075.

21252525 is an apocalyptic number.

It is an amenable number.

1252525 is a deficient number, since it is larger than the sum of its proper divisors (300637).

1252525 is an equidigital number, since it uses as much as digits as its factorization.

1252525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50111 (or 50106 counting only the distinct ones).

The product of its digits is 1000, while the sum is 22.

The square root of 1252525 is about 1119.1626334005. The cubic root of 1252525 is about 107.7942183523.

The spelling of 1252525 in words is "one million, two hundred fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 50101 250505 1252525