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1225330025 = 52311581071
BaseRepresentation
bin100100100001001…
…0000110101101001
310011101200012210112
41021002100311221
510002141030100
6321331024105
742236063513
oct11102206551
93141605715
101225330025
11579737647
122a243b035
13166b2296a
14b8a44bb3
1572890b35
hex49090d69

1225330025 has 12 divisors (see below), whose sum is σ = 1568423424. Its totient is φ = 948642000.

The previous prime is 1225330019. The next prime is 1225330061. The reversal of 1225330025 is 5200335221.

It is not a de Polignac number, because 1225330025 - 218 = 1225067881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789761 + ... + 791310.

It is an arithmetic number, because the mean of its divisors is an integer number (130701952).

Almost surely, 21225330025 is an apocalyptic number.

It is an amenable number.

1225330025 is a deficient number, since it is larger than the sum of its proper divisors (343093399).

1225330025 is a wasteful number, since it uses less digits than its factorization.

1225330025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581112 (or 1581107 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1225330025 is about 35004.7143253591. The cubic root of 1225330025 is about 1070.0835597247.

Adding to 1225330025 its reverse (5200335221), we get a palindrome (6425665246).

The spelling of 1225330025 in words is "one billion, two hundred twenty-five million, three hundred thirty thousand, twenty-five".

Divisors: 1 5 25 31 155 775 1581071 7905355 39526775 49013201 245066005 1225330025