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1425725 = 5278147
BaseRepresentation
bin101011100000100111101
32200102201122
411130010331
5331110400
650320325
715055430
oct5340475
92612648
101425725
11894194
125890a5
133abc32
14291817
151d2685
hex15c13d

1425725 has 12 divisors (see below), whose sum is σ = 2020704. Its totient is φ = 977520.

The previous prime is 1425707. The next prime is 1425733. The reversal of 1425725 is 5275241.

It is not a de Polignac number, because 1425725 - 26 = 1425661 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1425694 and 1425703.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3899 + ... + 4248.

It is an arithmetic number, because the mean of its divisors is an integer number (168392).

21425725 is an apocalyptic number.

It is an amenable number.

1425725 is a deficient number, since it is larger than the sum of its proper divisors (594979).

1425725 is an equidigital number, since it uses as much as digits as its factorization.

1425725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8164 (or 8159 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 1425725 is about 1194.0372691001. The cubic root of 1425725 is about 112.5499366785.

The spelling of 1425725 in words is "one million, four hundred twenty-five thousand, seven hundred twenty-five".

Divisors: 1 5 7 25 35 175 8147 40735 57029 203675 285145 1425725