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525001133 = 4391119563
BaseRepresentation
bin11111010010101…
…110000110101101
31100120212211011102
4133102232012231
52033400014013
6124032332445
716003302356
oct3722560655
91316784142
10525001133
1124a393138
121279a4125
13849c9977
144da22d2d
1531155d58
hex1f4ae1ad

525001133 has 4 divisors (see below), whose sum is σ = 525125088. Its totient is φ = 524877180.

The previous prime is 525001129. The next prime is 525001153. The reversal of 525001133 is 331100525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525001133 - 22 = 525001129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525001153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55391 + ... + 64172.

It is an arithmetic number, because the mean of its divisors is an integer number (131281272).

Almost surely, 2525001133 is an apocalyptic number.

It is an amenable number.

525001133 is a deficient number, since it is larger than the sum of its proper divisors (123955).

525001133 is a wasteful number, since it uses less digits than its factorization.

525001133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123954.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 525001133 is about 22912.9031988528. The cubic root of 525001133 is about 806.7149033340.

Adding to 525001133 its reverse (331100525), we get a palindrome (856101658).

The spelling of 525001133 in words is "five hundred twenty-five million, one thousand, one hundred thirty-three".

Divisors: 1 4391 119563 525001133