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52525189 = 173089717
BaseRepresentation
bin1100100001011…
…1100010000101
310122211120000101
43020113202011
5101421301224
65113444101
71205312443
oct310274205
9118746011
1052525189
1127715a52
1215710631
13ab608c2
146d93b93
154928044
hex3217885

52525189 has 4 divisors (see below), whose sum is σ = 55614924. Its totient is φ = 49435456.

The previous prime is 52525183. The next prime is 52525201. The reversal of 52525189 is 98152525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46922500 + 5602689 = 6850^2 + 2367^2 .

It is not a de Polignac number, because 52525189 - 217 = 52394117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52525183) 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 3 ways as a sum of consecutive naturals, for example, 1544842 + ... + 1544875.

It is an arithmetic number, because the mean of its divisors is an integer number (13903731).

Almost surely, 252525189 is an apocalyptic number.

It is an amenable number.

52525189 is a deficient number, since it is larger than the sum of its proper divisors (3089735).

52525189 is a wasteful number, since it uses less digits than its factorization.

52525189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089734.

The product of its digits is 36000, while the sum is 37.

The square root of 52525189 is about 7247.4263707885. The cubic root of 52525189 is about 374.5034946136.

The spelling of 52525189 in words is "fifty-two million, five hundred twenty-five thousand, one hundred eighty-nine".

Divisors: 1 17 3089717 52525189